Brand: TREK
Reference: 5319665
The Trek bike, model 2025 Top Fuel 9.8 XT Gen 4, is a lightweight trail bike, made of carbon, to crush the climbs and enjoy the descents. It gives you the confidence you need to ride roots and rocks, thanks to its 120mm/130mm RockShox suspension package, with a Pike Select+ fork and a Deluxe Ultimate shock. Plus, you can enjoy precise shifting thanks to the 12-speed Shimano XT transmission.
It is ideal for you if...
You are looking for a trail bike made of carbon that keeps weight to a minimum, without giving up capacity. You like to do it all: long alpine climbs, rootsy Aspen slalom, and fast XC singletrack, and you're looking for a bike that can keep up the pace on the climbs and perform on the descents. Maintaining a light weight with a carbon frame is important to you, and you want to enjoy the light and precise shifting of a Shimano XT drivetrain.
Features
The Top Fuel Gen 4 convinces with an incredibly light build, improved frame storage and more adjustability for all types of rides and riders.
With 120 mm of travel at the rear and 130 mm at the front of the RockShox suspension, it provides a balanced pedal stroke that remains efficient on climbs and playful on descents.
The 4-position Mino Link allows you to easily adjust the geometry or progression of the suspension depending on where and how you want to ride.
In-frame storage, with an improved BITS bag system, allows for convenient storage of tools, cameras and food.
It's more ready than ever for any upgrade, with room for larger 140mm forks and longer-stroke shocks, offering up to 130mm of rear travel, plus room for extra-long dropper posts. .
Frame Assembly
OCLV Mountain Carbon frame, internal storage, tapered head tube, internal cable routing, down tube protector, link OCLV carbon rocker Next, Mino 4 Link, ABP, Boost148, 120mm travel
RockShox Deluxe Ultimate RCT shock, 185x50 mm
Maximum compatible fork travel 140 mm
Wheels
*Front wheel
Size: S
Bontrager Line Comp 30, Tubeless Ready, 6 bolts, Boost110, 15mm thru axle, 27.5"
Size: M, ML, L, XL
Bontrager Line Comp 30, Tubeless Ready, 6 bolts, Boost110, 15mm thru axle, 29"
*Rear wheel
Size: S
Bontrager Line Comp 30, High Strength 6000 Series aluminum rim, Tubeless Ready, Rapid Drive 108, 6 bolts, Shimano MicroSpline core, Boost148, 12 mm thru axle, 27.5"
Size: M, ML, L, XL
Bontrager Line Comp 30, High Strength 6000 Series aluminum rim, Tubeless Ready, Rapid Drive 108, 6 bolts, Shimano MicroSpline hub, Boost148, 12mm thru axle, 29"
Rear closure Bontrager Switch thru axle, removable cam
*Cover
Size: S
Bontrager Gunnisson RSL XT, Tubeless Ready, triple compound, aramid rim, 120 tpi, 27.5x2.40”
Size: M, ML, L, XL
Bontrager Montrose RSL XT, Tubeless Ready, triple compound, aramid rim, 120 tpi, 29x2.40”
Size: M, ML, L, XL
Bontrager Gunnisson RSL XT, Tubeless Ready, triple compound, aramid rim, 120 tpi, 29x2.40”
Bontrager TLR rim tape
Max. size. of the tire Frame: 29x2.50" Fork: See manufacturer
Transmission
Shimano XT M8100 shift lever, 12 speeds
Shimano XT M8100 rear derailleur, long cage
Shimano XT M8120 bottom bracket, 30T, 55mm chain line, 170mm length
Shimano BB-MT501 BSA bottom bracket
Shimano XT M8100 cassette, 10-51, 12 speeds
Shimano Ultegra/XT M8100 chain, 12 speeds
Maximum plate size 1x: 34D, min. 30D
Components
Verse Short Comp saddle, steel rails, 145 mm width
*Seatpost
Size: S
Bontrager Line Dropper, 100 mm travel, MaxFlow, internal guidance, 34.9 mm, 310 mm length
Size: M, ML, L, XL
Bontrager Line Dropper, 170 mm travel, MaxFlow, internal guidance, 34.9 mm, 450 mm length
Bontrager XR Trail Elite grips, nylon lock
Shimano XT M8120 4-piston hydraulic disc brake
Shimano RT86 brake disc, 6 screws, 180 mm
Disc size Maximum brake disc dimensions: frame: 200 mm, min. 180 mm, fork: see manufacturer
Accessories
Bontrager BITS Internal Frame Storage Bag
Weight
Weight M - 13.45 kg / 29.66 lbs (with TLR sealant, without tubes)
Weight limit This bicycle has a maximum weight limit (combined weight of bicycle, rider and cargo) of 136 kg.