Versatility. A mountain bike is meant to go up and down mountains and to provide fun while doing so. The H1700 Spline do precisely that. And since e-bikes allow the rider to go up and down many mountains in one ride, reliability and weight is key.

Continental's Kryptotal Front tire is the ultimate tire designed to help you push your limits on mixed terrain trails, enduro, and downhill gravity riding. Optimized for grip, traction for braking, and rolling resistance.

The road tire for more speed and strength. Tubeless-ready, versatile and lightweight. BlackChili balances grip and rolling resistance. Active Comfort Technology smooths the ride. Lazer Grip for excellent cornering. Hooked and hookless compatible.

The Velocita features a knurled center tread and transitions to a file tread along the edges for confidence in the corners. Ideal for riders who want a high-volume, lightweight slick for their gravel or all-road bike.

After gathering years of data and feedback from our World Cup Downhill and Enduro World Series athletes, the Shorty is completely new for 2021. The knob layout has been altered to improve wet traction, cornering performance, and mud shedding abilities.

The Strada is Challenge's go to tire for long days on the road. This all-condition tire combines a round profile that takes the sting out of rough pavement with a construction that provides maximum control and low rolling resistance.

Di2 is a technology you simply won’t need to worry about. Its on-demand gear selection, precision mechanics, and programmable shifting mean you can set it up once the way you like it and get on with the adventure. This is the way technology should be.

45NRTH's two-piece construction method creates a reliable and high-performing bicycle tire stud, featuring a concave carbide-aluminum design.

ABW topcap, custom-made by the cool folks at Ground Keeper.

DMR DeathGrip Flangeless

DMR Flanged DeathGrip

SRAM Sram Cassette XS-1275 T-Type Eagle 10-52 12 speed