About the Trek Top Fuel 9.8Top Fuel 9.8 is a high-performance full suspension mountain bike for endurance racers and riders who don\\\'t settle for one style of riding. It combines the best qualities of XC and trail bikes for an unbelievably fun, efficient and capable rig. It\\\'s fast on flow, shreds big singletrack and conquers endurance events. The 9.8 is built with an OCLV Mountain Carbon frame and across-the-board parts upgrades, including a 120 mm Fox Performance 34 Step-Cast fork, SRAM GX Eagle drivetrain and carbon wheels and bars. You want an efficient, capable, short-travel trail bike that excels at endurance and stage racing and can handle rough trails and even XC races. You appreciate the performance advantage of carbon and want a super-light bike with race-level components and suspension. A full OCLV Mountain Carbon frame, upgraded 120 mm Fox Performance 34 Step-Cast Float fork with GRIP damper, 115 mm of rear travel with a Fox Performance Float shock and a 1x12 SRAM GX Eagle drivetrain with Truvativ Descendant 7k DUB cranks. Plus, wide carbon Bontrager Kovee Elite 30 wheels with a 54-tooth Rapid Drive hub for fast engagement, TwistLoc dual remote suspension lockout, Bontrager Line Elite Dropper, Bontrager Kovee Pro OCLV Carbon handlebars and upgraded Shimano SLX hydraulic disc brakes. Top Fuel 9.8 is an efficient, capable and ridiculously fun short-travel carbon trail bike with the performance boost of upgraded parts like the drivetrain, fork and brakes. It\\\'s built to rip technical terrain and descents, speed through flow sections and withstand the beating that endurance races dole out. Key FeaturesOCLV Mountain Carbon Frame allows easier handling on the toughest of trails with the benefit of a light constructionFox Performance 34 Step-Cast Fork is ready to set the pace, from XC missions to trail adventuresFox Performance Float Rear Shock for efficient pedalling and pumping, and instantly soaks up bumps to keep you in controlSRAM GX Eagle 12-Speed Drivetrain for precise gear changes and making it easier to ride up steep hillsShimano SLX M7000 Hydraulic Disc Brakes give powerful, controllable and consistent stopping power with less effortBontrager XR3 Team Issue 29 x 2.4\\\" Tyres offers Incredible traction and cornering for loose and rocky trails, wet or dryBike SizingChoosing the bike size depends on the type of bike, your height, your riding style, and your preference. A correct fitting bike will be more comfortable, more efficient and more fun to ride. This bike size guide gives our customers general advice on choosing the right size. It is a guide only and we always recommend visiting one of our stores or contacting one of our experts. MTB Sizing GuideMountain Bike Buying Guide