2021 Trek Fuel EX 9.9 XO1 Full Suspension Mountain Bike in Lithium Grey and Factory Orange is the top end of the Fuel EX range and as you’d expect it makes no compromises. It’s fast, it’s light, and it’s got everything you need to crush your next trail ride. If you can have just one mountain bike, this is it. Fuel EX 9.9 has the lightest parts with the most adjustability and precision. It’s equally at home on fast, flowy singletrack, brutal leg-busting climbs and gnarly arm-pumping descents.You get A light and stiff OCLV Mountain Carbon frame with internal storage. Top-shelf suspension from FOX Factory 36 fork gives you four-way damping adjustments, plus you get Kashima Coat for smoother, more durable stanchions. RE:aktiv with Thru Shaft that works faster than a normal shock, so it tracks the ground better and keeps you in control.SRAM’s latest X01 Eagle drive train with a huge 52-tooth cog and SRAM G2 RSC hydraulic disc brakes make this ripper ready to rule any trail in style. Bontrager carbon wheels and carbon everything for lower weight and elevated good looks. The expanded size range ensures a better fit for all riders. And, you get the fastest wheel that fits your frame: XS frames get 27.5? wheels, S frames get to choose between 27.5? or 29? and sizes M to XL get 29? wheels. The Fuel EX 9.9 XO1 is for riders who want the best in everything. It’s dripping with carbon and has the latest in suspension and drive train techThis bike is perfect forYou want a bike as versatile as you are, and you’re demanding – of yourself and of your equipment. You want the lightest weight, the most adjustability and the highest precision so the last thing you have to worry about on your next adventure is your bike.FeaturesA light and stiff OCLV Mountain Carbon frame with internal storage,FOX Factory suspension with Kashima Coat and an efficient yet plush RE:aktiv with Thru Shaft damper.SRAM’s latest X01 Eagle drive train with a huge 52-tooth cogBontrager carbon wheels and loads of other carbon parts for lower weight and elevated good looks.