Trek Bicycle via YouTube
Shop Bontrager XR3 MTB Tires: http://bit.ly/2KQCQwH
Get a grip! The redesigned and race-ready XR3 is a fast-rolling, do-it-all tire with fierce traction. We combined a fast-rolling center tread with aggressive side knobs for consistent cornering and traction across a variety of trail surfaces. XR3 tires are great for race day or an afternoon out on the trails.
Find your local Trek retailer: http://bit.ly/2KNjtok