Cycling

The PF30 standard is widely used. To make it compatible with Shimano and other 24mm diameter cranks, as well as improve the system, select this bottom bracket. The package comes with two cups and CeramicSpeed Bearings installed. The cups have extended inner sleeves and join with a center section, reducing the likelihood of creaking and increasing the reliability of the system while also eliminating spindle rub on internal cables. The cups mate with 24/22mm crank spindles. There are two bearing options. Both Standard and Coated Bearings feature super smooth CeramicSpeed Balls and hardened-steel races. The CeramicSpeed Coated Bearings have an additional feature: a 3-micron thick metallic layer over the races. This addition makes the races smoother and harder, lowering drag and increasing life. The CeramicSpeed Standard Bearings have only 0.3-0.4 watts of frictional drag per set, an average drag reduction of 75% compared to stock bottom brackets. This is the result of great design, including hardened-steel races and CeramicSpeed Balls that are 100% smoother and 15% harder than the ceramic competition. They also last longer. The CeramicSpeed Coated Bearings last even longer and feature even lower drag. Life increases by 60% and drag drops by 50% compared to our CeramicSpeed Standard Bearings. All Round Grease is installed in the bearings. It can be replaced for lower-drag TT and Track Grease or higher-durability LongLife Grease, which adds a bit of drag but stays in the bearing when riding through messy conditions. In The Box - 1 bottom bracket with bearings installed - 2 dust covers - 10ml syringe of All Round Grease - Sticker sheet

The PF4130 bottom bracket is Press Fit into 41mm diameter shells that are 86.5mm wide and mate most cranks with a 30mm spindle to that standard. If you have a BB86 frame and want to install a 386EVO crank or Rotor 30mm crank, this is the kit you need. CeramicSpeed bearings are installed in cups. The Standard Bearing has ceramic CeramicSpeed balls and hardened-steel races. The Coated Bearing has the same balls running on hardened-steel races with a 3-micron-thick metallic coating making the races harder and smoother, increasing service life and reducing friction. Enjoying the benefit of a massive, strong, and light 30mm crank spindle in your BB86 frame is possible with this kit. Press in the cups, set up the wave washer, add spacers if necessary, and torque down. CeramicSpeed's bottom bracket is also stiff and light, but its greatest benefits come in the form of drag reduction. Standard Bearings with stock grease typically have frictional drag of 0.3-0.4 watts per set. That's about a 75% drag reduction compared to conventional bottom brackets. The bearings also last at least three times longer than other bearings. Performance can be tuned by replacing grease. All Round comes with this BB, but you can change it to TT and Track Grease for less drag or to LongLife for greater durability. In The Box - 2 cups with bearings installed - 2 1mm spacers - 2 0.5mm spacers - 2 dust covers - O-ring - Plastic cable protector - 10ml syringe All Round Grease - Sticker sheet

This bottom bracket is perfect for when you have a PF30, BBright, or 386EVO shell frame and want to install a crank with a 30mm spindle into the frame. All these frame standards have a 46mm inner diameter and smooth insides, though the widths vary from 68mm to 86mm. This bottom bracket features nearly zero loss of power due to friction, thanks to the CeramicSpeed's incredibly efficient bearings. Choose either our Standard or Coated Bearings—both have super-round, super-smooth CeramicSpeed balls rolling on hardened-steel races. The Coated version has a metallic coating laid onto the races, making them even harder and smoother and resulting in longer life and lower drag. They come installed in cups. 30mm spindles on cranks are increasingly popular because of the high stiffness and low weight. 46mm inner diameter bottom brackets are popular for the freedom they offer designers in building frames. Because of the variety of widths, the cups here extend into the shell and come with a telescoping spacer tube to further seal and stiffen the system. The bottom bracket is already stiff thanks to hard ceramic bearings and hardened-steel races. Thanks to CeramicSpeed, it also generates nearly zero drag. Standard Bearings typically have frictional drag of 0.3-0.4 watts per set. That's in the range of a 75% drag reduction versus conventional BBs. The bearings also last at least 3x longer than other bearings. You can change the grease to fine-tune your BB's performance characteristics. TT and Track, All Round, and LongLife are greases CeramicSpeed designed. The first has the least drag, while the last is the most durable. All Round, in the middle, comes standard in road bearings. In The Box - 2 cups with bearings installed - 2 1mm spacers - 2 0.5mm spacers - 2 dust covers - O-ring - Spacer tube - 10ml All Round Grease - Sticker sheet

These bottom brackets are equipped with hand-built coated bearings specially developed for off-road performance that offer extreme durability and feature a unique design for SRAM DUB 28.99mm cranks. Coated bearings utilize the highest-quality CeramicSpeed ceramic balls, running on hardened-steel races with a 3-micron-thick metallic coating that makes the races corrosion-resistant, harder, and smoother, increasing service life and reducing friction. - This product has a unique design specifically for SRAM DUB 28.99mm cranks - Native fit frame interface and no plastic adapters or excess spacers - This design features a custom integrated dust cover for maximum durability In the box: - 2 CeramicSpeed Bearings - 2 dust covers - Plast sheet - 1 x 3mm spacer - 2 x 1mm spacers - 10ml syringe of CeramicSpeed Long Life Grease - Sticker sheet

The BB86 mountain bike standard was designed to integrate bearings into the bottom bracket for weight reduction. This kit works with the standard: it consists of two cups that are pressed into either side of the shell. There are two versions of this bottom bracket. Both come with CeramicSpeed Bearings installed into cups. The first is our long-life, low-drag Standard Bearing with hardened-steel races and our CeramicSpeed super-round, super hard balls. The second is our Coated bearing, which uses those same CeramicSpeed Balls installed on coated, hardened-steel races for longer life and less bearing drag. This CeramicSpeed BB86 Bottom Bracket meshes with cranks that have 24mm spindles, including both Shimano and FSA. CeramicSpeed standard Bearings typically have frictional drag of 0.3-0.4 watts per set. That means an average 75% drag reduction compared to standard bottom brackets. The hardened-steel races feature CeramicSpeed Balls that are 100% smoother and 15% harder than the ceramic competition. The CeramicSpeed Bearings last at least three times longer than other bearings. Coated Bearings drop friction further and increase lifespan to applying a coating to the races. The coated races see a 50% drag reduction and an improvement in bearing life of 60%. In The Box - 2 bottom bracket cups with bearings installed - 2 dust covers with integrated spacers installed - Spacer tube - 10ml syringe of LongLife Grease - Sticker sheet

BSA is equivalent to English threading. English threading on MTBs mean a 73mm-wide, 34mm-inside-diameter shell with reverse threading on the drive side. It's the most common threaded standard employed today. This kit works with 24mm diameter cranks, such as Shimano, FSA, Rotor, and others. Choose between two bearing types for the cups. Standard Bearings have low drag thanks to hardened-steel races and our Ceramic balls. Coated Bearings have those same balls installed on coated, hardened-steel races for longer life and less bearing drag. For MTBs, English threading, thanks to history, is pretty much the one threaded standard. It works great. 24mm spindles easily fit through the shell, allow for large bearings to be employed in the outside cups. What's more, they rarely creak and seal up well. Lots of things slow bikes down; bearings shouldn't be among them. CeramicSpeed Standard Bearings typically have frictional drag of 0.3-0.4 watts per set. That's in the range of a 75% drag reduction compared to standard bottom brackets. The bearings last at least 3x longer than other bearings. Coated bearings have even less drag. These bearings come packed with LongLife Grease, best for muddy conditions. For less drag when riding in cleaner environs, you can coat the bearings with either All Round Grease or lowest drag TT and Track Grease, which is designed for clean conditions. In The Box - 2 threaded cups with bearings - 2 dust covers with built-in spacers - Spacer tube - 10ml syringe of LongLife grease - Sticker sheet

BSA is equivalent to English threading. English threading on road bikes mean a 68mm-wide, 34mm inside diameter shell with reverse threading on the drive side. It's the most common threaded standard employed today. This kit works with 24mm diameter cranks, such as Shimano, FSA, Rotor, and others. Choose between two bearings for the cups. Standard Bearings have low drag thanks to hardened-steel races and our Ceramic balls. Coated Bearings have those same balls installed on coated, hardened-steel races for longer life and less bearing drag. English threading is easy to work with, and 24mm spindles easily fit through the shell, allowing for large bearings to be employed in the outside cups. Put more of your energy into forward motion by reducing frictional drag wherever you can. CeramicSpeed Standard Bearings typically have frictional drag of 0.3-0.4 watts per set. That's in the range of a 75% drag reduction compared to standard bottom brackets. CeramicSpeed balls are 100% smoother and 15% harder than ceramic competition. The bearings last at least 3x longer than other bearings. In The Box: - 2 threaded cups with bearings - 2 dust covers with built-in spacers - Spacer tube - 10mm syringe of All Round Grease - Sticker sheet

BSA comes from Birmingham Small Arms, aka English threading. English threading on mountain bikes means a 73mm-wide, 34mm-inside-diameter shell with reverse threading on the drive side. It's the most common threaded standard employed today. This kit allows you to fit 30mm cranks, like those from Rotor or RaceFace, to fit in the tight space of this 30mm spindle. CeramicSpeed Coated Bearings are hand-built with unique CeramicSpeed Ceramic Balls installed on coated, hardened-steel races for longer life and less bearing drag compared to standard bearings. In The Box - 2 threaded cups with bearings installed - 2 1mm spacers - 2 0.5mm spacers - 2 dust covers - O-ring - 10ml syringe All Round Grease - Sticker sheet

The PF30 standard has opened design possibilities for mountain bikes. Our CeramicSpeed PF30 Shimano MTB Bottom Bracket gives you the ability to install Shimano and other 24mm diameter spindle cranks on your PF30 MTB. Our PF30 cups have extended sleeves and join with a center section, reducing the likelihood of creaking and increasing the reliability of the system. There is both a Standard and Coated version. Both feature super smooth CeramicSpeed Balls and hardened-steel races. The CeramicSpeed Coated Bearings have an additional benefit: a 3-micron thick metallic layer over the races. This addition makes the races harder and smoother, lowering drag and increasing life. The CeramicSpeed Standard Bearings have only 0.3-0.4 watts of frictional drag per set, an average drag reduction of 75% compared to stock bottom brackets. This is the result of great design, including hardened-steel races and CeramicSpeed Balls that are 100% smoother and 15% harder than the ceramic competition. They also last longer. If you want longer life and even lower drag, opt for the CeramicSpeed Coated Bearings. Life increases by 60% and drag drops by 50% compared to our CeramicSpeed Standard Bearings. Performance can be tuned by changing the grease. LongLife Grease comes installed, but can be changed for lower-drag All Round Grease for lower drag and cleaner riding conditions. In The Box - 1 bottom bracket with CeramicSpeed bearings installed - 2 dust covers - 5 0.85mm spacers - 10ml syringe of LongLife Grease - Sticker sheet

Developed and designed entirely by CeramicSpeed, the Oversized Pulley Wheel System for Campagnolo is advanced for the optimization of bike performance. Everything from bearings to the cage is made from the highest quality materials. The oversized aluminum pulley wheels are fitted with standard or coated CeramicSpeed Bearings, which reduce friction to the minimum. The 13-tooth/19-tooth OSPW for Campagnolo provides 40% lower friction over a standard 11-tooth Campagnolo pulley wheel and fits up to a 32-tooth cassette. The OSPW for Campagnolo is compatible with all Campagnolo electronic rear derailleur (EPS) and all rear derailleurs with a mounting sleeve—no matter the age and model. At this point, this OSPW System is not compatible with the Campagnolo 12-speed Record and Super Record derailleurs. The OSPW for Campagnolo is compatible with: - Record mechanical - Record EPS - Super Record mechanical - Super Record EPS - Potenza mechanical - Chorus Please note, some models of Campagnolo rear derailleur, including all EPS models, do not feature a B-limit adjustment. While this product is still compatible with those derailleurs, it may not be possible to fit a 32 tooth cassette successfully on some bikes. When travelling, please remember to dismount your entire rear derailleur with an Allen key, as the OSPW System will not safely fit in most bike travel bags and could be damaged if left on. In The Box: - Oversized Pulley Wheel System - CeramicSpeed Bearing Oil in 15ml dropper bottle - Sticker sheet

Developed and designed entirely by CeramicSpeed, the Oversized Pulley Wheel (OSPW) System for Shimano 9000/6800 provides the ultimate optimization of your bicycle's drivetrain. This OSPW System features a set of 17-tooth aluminum Pulley Wheels housed in a specially designed polyamide (PA) and carbon cage. The upper and lower 17-tooth oversized aluminum pulley wheels come fitted with either standard or coated CeramicSpeed Bearings. The Oversized Pulley Wheel (OSPW) System is the product of choice by many of the world's leading cycling teams and triathletes. This specific system is compatible with Ultegra 6700/6770/6800/6870 mechanical and Di2 rear derailleurs and Dura Ace 7900/7970/9000/9070 mechanical and Di2 rear derailleurs. It is not compatible with Shimano Dura-Ace 9100/9150 and Ultegra 8000 series rear derailleurs. For those rear derailleurs you will need a OSPW System for Shimano 9100 series. The system is compatible with up to a 28-tooth cassette on most bikes, depending on derailleur hanger. The typical overall power savings of the OSPW System for Shimano 9000/6800 is 30%-60% over a stock setup, and the oversized pulley wheels have a lifespan that is 3-5 times longer than the commonly used standard pulleys on the market. In The Box: - A complete 17-tooth OSPW System - CeramicSpeed bearing oil in 15ml dropper bottle

Chamois Butt'r starter pack Variety pack: - 2x Coconut: Non-greasy skin lubricant made with Organic Coconut Oil and Shea Butter - 6x Original: Non-greasy skin lubricant that easily washes off skin and clothing with soap and water - 2x Her: Made with aloe vera, green tea leaf extract, tea tree oil, shea butter and lavender oil - 2x Eurostyle: Non-greasy skin lubricant with a traditional European cooling formula

Service tools to ensure long-term success of Chris King hubs. - For intensive servicing of Ringdrive system found in most Chris King rear hubs - Included: Hub Cone Adjusting Tool, Cog Spline Wrench, Spline Driver, Driveshell Bushing Tool, and Service Manual - Does not fit R-45 model hubs. See TL7829 for proper tool fitting R-45 hubs

Why We Make This The simple answer is that many contemporary bicycle frame designs call for the headset bearings to ride inside the frame’s headtube. After decades of making press-in bearing headsets, we needed to make headsets that worked in these newer frames. From the beginning we understood that integrated headsets posed a unique challenge in that the bearings are not pressed into a cup and sit loosely in the frame. When bearings are not pressed securely into a cup they shift and move, rapidly losing preload. As preload drops, the bearings are more susceptible to creaking, damage, and failure. That’s a problem we know how to solve. Why You Want It Enter, our patented GripLock™ bearing cap. The GripLock™ preloads the headset independently of clamping onto the steerer, so it retains preload far better than the competition and is impervious to the ill effects of load spikes from large hits and heavy braking. This means smoother steering, no more creaking, and a longer lasting headset. Our GripLock™ design also takes the guesswork out of preloading a headset, because the bearing preload force is independent of the clamping force. Our headsets can be preloaded to a torque spec. Compatible with Santa Cruz, Yeti, Alchemy, Santa Cruz Stigmata (without baseplate), Ibis Hakka MX, and more. - Engineered, manufactured and assembled in Portland, Oregon USA - King Lifetime Warranty - Legendary made-in-house bearings - Patented GripLock® retention design for dependable headset adjustment (US Patent 8662517) - 41mm 45x45 upper bearing - 52mm 36x45 lower bearing - Compatible with the included baseplate and 36 degree integrated crown races

Why We Make It Maybe we’re just a bunch of old softies, but the GripNut told the world we meant business when it came to headsets, and there are still a kajillion of them out in the world, giving good, daily service. It’s hard to talk about sustainability and not keeping making a cornerstone product like this one. Why You Want It You want to ride that classic bike of yours forever, and we don’t blame you. Our GripNut™ headset is designed for threaded forks that don’t require a cable hanger or additional spacers, allowing us to build a low stack height threaded headset with a unique collet locking system that stays securely adjusted. Every Chris King headset is built with our heat-treated bearings, and surgical-grade steel races machined simultaneously to ensure they are perfectly matched. As Chris King bearing tracks age and burnish, they actually get smoother, and all headsets are fully serviceable for years upon years of demanding riding. External upper and lower cups with the iconic, Chris King rounded profile adds timeless style to even the most modern bike. - Engineered, manufactured and assembled in Portland, Oregon USA - King Lifetime Warranty - Legendary made-in-house bearings - GripNut™ proprietary collet retention system - Options for 1” or 1-1/8” straight steerer tubes

The Inset headset offers Chris King's trademark quality and durability in a low-stack configuration sized for contemporary headtube dimensions. King's legendary made-in-house bearings still form the centerpiece of the Inset headsets, with precisely machined aluminum cups and headset caps available in all ten classic Chris King colors. The Inset 2 is compatible with tapered 1-1/8 - 1-1/2-inch forks and frames using a 44/56mm headtube.

Why We Make This Contemporary bicycle frame designs are incorporating larger diameter headtubes and forks with tapered-steerers to improve the bike’s front end stiffness, and as a result handling accuracy. This move has made particular sense for off-road bikes. We evolved the form and function of our legendary NoThreadset to address the variety of tapered steerers and headtubes on the market today. Why You Want It Every Chris King headset is built with our heat-treated bearings, and surgical-grade steel races machined simultaneously to ensure they are perfectly matched. As Chris King bearing tracks age and burnish, they actually get smoother, and all headsets are fully serviceable for years upon years of demanding riding. Built for the next generation of tapered road forks the Chris King InSet™ 8 is built to fit contemporary road and cross bikes that utilize 1-1/8” to 1-1/4”tapered steerer tubes and a 44mm headtube. Our InSet™ 8 combines our exclusive Chris King built bearings and our GripLock® retention system for unequalled riding quality. - Engineered, manufactured and assembled in Portland, Oregon USA - King Lifetime Warranty - Legendary made-in-house bearings - Patented GripLock® retention design for dependable headset adjustment (US Patent 8662517) - Responsibly lightweight - Designed specifically for a 44mm straight headtube and a 1-1/8” to 1-1/4” tapered steerer tube

Why We Make This Headtube and fork steerer standards have proliferated in recent years, but for a long, long time these variables were more fixed, so we made thousands upon thousands of NoThreadsets™ to serve bikes with unthreaded fork steerers. We made them in a variety of diameters, and everyone was happy in the land. We still make it, because it’s still a great headset for all those bikes that are still rolling through the world with a headset that will never die. Why You Want It For decades our NoThreadSet™ set the standard for quality headset function delivering precision performance to numerous world champions, grand tour winners, and aspiring riders around the world. Every Chris King headset is built with our heat-treated bearings, and surgical-grade steel races machined simultaneously to ensure they are perfectly matched. As Chris King bearing tracks age and burnish, they actually get smoother, and all headsets are fully serviceable for years upon years of demanding riding. - Engineered, manufactured and assembled in Portland, Oregon USA - King Lifetime Warranty - Legendary made-in-house bearings - Patented GripLock® retention design for dependable headset adjustment (US Patent 8662517) (1-1/8” only) - Available in 8 beautifully anodized colors in both bold and sotto voce marking options - Responsibly lightweight - Options to fit 1” and 1-1/8” straight steerer tubes

Why We Make This Our tapered NoThreadSet™ brings our classic profile to the world of tapered headtubes. The NoThreadSet™ is built to be precise and dependable and sets the standard for quality headset function delivering precision performance to numerous world champions, grand tour winners, and aspiring riders around the world. Why You Want It Every Chris King headset is built with our heat-treated bearings, and surgical-grade steel races machined simultaneously to ensure they are perfectly matched. As Chris King bearing tracks age and burnish, they actually get smoother, and all headsets are fully serviceable for years upon years of demanding riding. External upper and lower cups with the iconic, Chris King rounded profile adds timeless style to even the most modern bike. - EC34/EC44 for 1-1/8" to 1-1/4" tapered steerer - Engineered, manufactured and assembled in Portland, Oregon USA - King Lifetime Warranty - Legendary made-in-house bearings - Patented GripLock® retention design for dependable headset adjustment (US Patent 8662517) (1-1/8” only) - Available in 8 beautifully anodized colors

Chris King ThreadFit 30 bottom brackets are designed and built to be durable, serviceable, and silent. Bearings can be serviced with the Chris King Grease injector tool. - King made-in-house bearings - 5-year warranty - Included Fit Kit #1 is designed to mate the ThreadFit 30 bottom bracket with a DUB MTB 28.99mm spindle - Spindle Interface Type: SRAM DUB - BB Shell Width (mm): 68 , 73 - Bottom Bracket Shell I.D.: 1.37 - BB/Frame Interface: English

The Chris King ThreadFit T47 24i Bottom Bracket provides the security and reliability of a threaded bottom bracket with the stiffness and power transfer gains of a PressFit 30 bottom bracket shell. - ThreadFit T47 24i fits 86mm and 92mm shell widths with 24mm spindles - Legendary made-in-house bearings - Easily serviceable with a grease injection tool - King Lifetime Warranty - Included Fit Kit #6 is designed to mate the ThreadFit T47 24i bottom bracket with a GXP spindle - Spindle Interface Type: SRAM/Truvativ GXP - BB Shell Width (mm): 86 , 92 - Bottom Bracket Shell I.D.: 47 - BB/Frame Interface: T47

The Chris King ThreadFit T47 24x Bottom Bracket provides the security and reliability of a threaded bottom bracket with the stiffness and power transfer gains of a PressFit 30 bottom bracket shell. - ThreadFit T47 24x will fit 68mm and 73mm shell widths with 24mm spindles - Legendary made-in-house bearings - Easily serviceable with a grease injection tool - King Lifetime Warranty - Included Fit Kit #6 is designed to mate the ThreadFit T47 24x bottom bracket with a GXP spindle - Spindle Interface Type: SRAM/Truvativ GXP - BB Shell Width (mm): 68 , 73 - Bottom Bracket Shell I.D.: 47 - BB/Frame Interface: T47

Why We Make This Contemporary bicycle frame designs are incorporating larger diameter headtubes and forks with tapered-steerers to improve the bike's front end stiffness, and as a result handling accuracy. This move has made particular sense for off-road bikes. We evolved the form and function of our legendary NoThreadset to address the variety of tapered steerers and headtubes on the market today. Why You Want It Every Chris King headset is built with our heat-treated bearings, and surgical-grade steel races machined simultaneously to ensure they are perfectly matched. As Chris King bearing tracks age and burnish, they actually get smoother, and all headsets are fully serviceable for years upon years of demanding riding. The Chris King InSet™ 7 combines seamless design and legendary quality in a 44mm headset with an external lower cup that is a precision headset option for your 1.5” tapered steerer fork. Our InSet™ 7 is equipped with our exclusive built-in-house bearings and our patented GripLock® system for precise fit and function. - Engineered, manufactured and assembled in Portland, Oregon USA - King Lifetime Warranty - Legendary made-in-house bearings - Patented GripLock® retention design for dependable headset adjustment (US Patent 8662517) - Responsibly lightweight - Designed specifically for a 44mm straight headtube and a 1-1/8” to 1.5” tapered steerer tube

R45D hubs combine a lightweight hub body, our legendary made-in-house bearings, and a six-bolt rotor mount to harness the power of disc brakes. The result is the increased power and modulation of disc brakes, the fast, smooth rolling speed of our bearings, and the rail steering from our one-piece solid axles. Our bearings, available in steel and ceramic, have heat-treated, surgical-grade steel races that are machined simultaneously, with tools of equal wear to ensure perfectly matched inner and outer races. The quality and speed of our bearings is what sets us apart from the competition and they are what you will feel and notice on every single ride. As Chris King bearing tracks burnish they get faster with age and all our hubs and bearings are fully serviceable for years upon years of demanding use. - Engineered, manufactured, and assembled in Portland, Oregon USA - 5-year built-to-last warranty - Legendary made-in-house bearings - Easily serviceable and completely re-buildable with our R45 Hub Service Tool - Available in 9 beautifully anodized colors - Ceramic bearing upgrade available

Light weight hub body and disc brake rotor mount. King in-house made bearings use surgical steel races machined at the same time to ensure a perfectly matched inner and outer race. - Easily serviceable and completely re-buildable - 5-Year warranty - Hub Drilling: 32 - Hub/Brake Compatibility: Center-Lock Disc - Color: Black - Spoke Interface: J-Bend - Front Axle: 12mm Thru x 100mm

The Boost 6-Bolt front is specifically for "Boost" disc spacing forks with 110x15mm "Boost" axles. Using the larger diameter hubshell bearing the Boost 6-Bolt is designed to tackle rough terrain and aggressive riding such as downhill and enduro. In an evolving landscape of axle specifications, we are confident that the "Boost" disc location is here to stay. Chris King Boost 6-Bolt front hubs are designed as precision mountain tools. We use one-piece axles to provide a stiff hub with rail accurate steering, transferring every minute adjustment you make to the trail. To thwart mud, water, and contaminants as you power through rough trails, Boost hubs have heavy-duty bearing seals and snaprings, that provide superior protection with ultra low drag. Our bearings, available in steel and ceramic, have heat-treated, surgical grade steel races that are machined simultaneously, with tools of equal wear to ensure perfectly matched inner and outer races. The quality and speed of our bearings is what sets us apart from the competition and they are what you will feel and notice on every single ride. As Chris King bearing tracks burnish they get faster with age and all our hubs and bearings are fully serviceable for years upon years of demanding use. - Steel Bearings - Engineered, manufactured and assembled in Portland, Oregon USA - King Lifetime Warranty - Wide flange placement - Fits 110x15mm Boost axles - Legendary made-in-house LD bearings - Easily serviceable with a 2.5mm hex and pick or pen knife - Completely re-buildable with our Universal Hub Service Tool - Responsibly lightweight - Ceramic bearing upgrade available - Available in 28, and 32 hole spoke count

WHY WE MAKE THIS Originally, we made this hub to be the cornerstone of our hub product line. It was one of those product releases where we put all our hub and bearing experience into, and ended up with a hub that struck that perfect balance between weight, performance, durability and looks. Since the advent of disc brakes (and the R45D), we keep making it, because it’s still that cornerstone hub, and so many of our riders still love to rock their rim brakes on road and off. WHY YOU WANT IT The R45 front hub is lighter and more aerodynamic than most built-to-last hubs on the market. We use a narrow hub body and low flanges to make the R45 a rock solid starting point for any fast wheel build. Our bearings, both steel and ceramic, have heat-treated, surgical grade steel races that are machined simultaneously to ensure perfect matching. The quality and speed of our bearings is what you will feel (and hear) on every ride. As Chris King bearing tracks burnish they get actually get faster. A little bit of regular love (i.e. service) will keep this hub rolling for years upon years of demanding use. -Steel Bearings - Engineered, manufactured, and assembled in Portland, Oregon USA - King Lifetime Warranty - Legendary made-in-house bearings - Easily serviceable with a 2.5mm hex and pick or pen knife - Completely re-buildable with our R45 Hub Service Tool - Available in 28h and 32h - Ceramic bearing upgrade available HUB SPECIFICATIONS - Axle Width: 100mm - Flange Diameter DS & NDS: 39.8mm - Center to Flange DS: 34.8mm - Center to Flange NDS: 34.8mm

Convert your ISO, ISO B, or ISO Superboost DH rear hub to a Shimano Micro Spline compatible driveshell. The conversion kit is complete with an axle, adjustment clamp, driveshell and all driveshell internals for a plug-and-play swap. Micro Spline Driveshell Instructions - Compatible with Shimano Micro Spline cassettes; XTR, XT, and SLX - Compatible with ISO 142x12mm, ISO B 148x12mm, and ISO Superboost DH 157x12mm rear hubs.

Convert your ISO, ISO B, or ISO Superboost DH rear hub to a Shimano Micro Spline compatible driveshell. The conversion kit is complete with an axle, adjustment clamp, driveshell, and all driveshell internals for a plug-and-play swap. Micro Spline Driveshell Instructions - Compatible with Shimano Micro Spline cassettes; XTR, XT, and SLX - Compatible with ISO 142x12mm, ISO B 148x12mm, and ISO Superboost DH 157x12mm rear hubs.

- Unidirectional carbon fiber riser bar with 35mm stem clamp area - Downhill strength with 25% weight savings compared to aluminum