Mountain bikers on incredibly offroad descents have to come back for the next race. To increase stability, they are slightly longer than trail and cross-country bikes, but they will use wider bars and shorter rods for more responsive steering. About Powerfly's BikeEvery Detail Builds on 30 years of creating the best bikes for the trail. . These electric mountain bikes feature advanced chassis and suspension technologies that only Trek can offer with a brand new battery integration system that makes it easier than ever to enjoy driving. Trek's built-in removable battery (RIB) system is superb and very user-friendly: it completely hides the battery in the frame for added protection, makes it easy to remove the battery without tools and allows you to mount a bottle cage - even on electric mountain bikes with total suspension. For e-MTB, total suspension changes the game: it absorbs uneven terrain and allows you to drive the Bosch pedal assist system to its full potential. It rolls like a mountain bike, because it is one: it has the same chassis and the same suspension technology as the ones we have improved over our decades-long trail heritage. When you put the assistance at rest, you have a perfectly capable track bike, ready to tackle rough terrain. Even when the track becomes rough, the wide 27.5+ tires offer more confidence, traction and stability. Key FeaturesAlpha Platinum Aluminum FrameRockShox Revelation RL ForkRear ShockShimano Deore XT 11-speed DriveSpiro Hydraulic Disc Shimano Deore BrakesBontrager XR4 Team Issue 27.5 x 2.8 " pneumatic