650B

The everyday tire for smooth, fast riding on hard-packed trails. - Tread pattern designed specifically for the terrain - Knob height and shape are placed in relation to the terrain on which the tire is ridden, providing traction and lean angle predictability - The tread pattern inspired by the Force Racing Line tires

The Jet XCR is Michelin's fastest rolling off road tire, with a tread pattern that excels in dry & hardpacked XC trail conditions. - Low profile center tread rolls fast while progressive shoulder lugs provide additional cornering traction - Gum-X2D dual compound rubber optimizes rolling efficiency and maximizes grip - Race Shield triple layer 150tpi casing is extremely lightweight and resilient against tears and cuts