Brand: TREK
Reference: 5319391
Trek's 2025 Top Fuel 9.9 This high-end bike delivers the performance you're looking for, with a RockShox Ultimate suspension package (120mm/130mm) and a SRAM X0 AXS wireless drivetrain that shifts smoothly and easily, especially under load. It's topped with carbon wheels to keep your ride light from start to finish.
It is ideal for you if...
You are looking for the best carbon trail bike with all-mountain capacity, climbing efficiency and high-end components. You don't mind spending a little more to get extremely precise shifting, like SRAM's X0 AXS wireless drivetrain, and you don't want to do without the new RockShox Ultimate suspension.
Features
The Top Fuel Gen 4 convinces with an incredibly lightweight build, improved frame storage and more adjustability for all types of rides and riders.
With rear travel of 120 mm at the rear and 130 mm at the front, the RockShox Ultimate suspension remains efficient on climbs and fun 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 Pro 30, OCLV Mountain Carbon, Tubeless Ready, 6 bolts, Boost110, 15mm thru axle, 27.5"
Size: M, ML, L, XL
Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, 6 bolts, Boost110, 15mm thru axle, 29"
Bontrager Line Pro 30 rear wheel, OCLV Mountain carbon, Tubeless Ready, Rapid Drive 108, 6 bolts, Boost148, 12 mm thru axle
*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 Sealant Cover Piece, 6oz
Bontrager TLR rim tape
Max. size. of the tire Frame: 29x2.50" Fork: See manufacturer
Electrical system
Battery SRAM eTap battery pack (with charger)
Transmission
*Shift lever
Size: S, M, ML, L, XL
SRAM AXS POD
Size: S, M, ML, L, XL
SRAM AXS POD, with telescopic post
SRAM X0 Eagle AXS rear derailleur, T-Type
SRAM X0 Eagle bottom bracket, DUB, 30D steel, T-Type, 55mm chainline, 170mm length
SRAM DUB MTB Wide bottom bracket, 73 mm, BSA threaded
SRAM Eagle XS-1295 cassette, T-Type, 10-52, 12 speeds
SRAM X0 Eagle chain, T-Type, 12 speeds
Maximum plate size 1x: 34D, min. 30D
Components
Verse Short Pro saddle, carbon rails, 145 mm width
*Seatpost
Size: S
RockShox Reverb AXS, 100mm travel, wireless, 34.9mm, 340mm length
Size: M, ML, L, XL
RockShox Reverb AXS, 170mm travel, wireless, 34.9mm, 480mm length
*Handlebar/stem (integrated)
Size: S
Bontrager RSL integrated handlebar and stem system, OCLV carbon, 27.5mm handlebar height, 820mm width, 0 degree stem height, 35mm stem length
Size: M, ML, L, XL
Bontrager RSL integrated handlebar and stem system, OCLV carbon, 27.5mm handlebar height, 820mm width, 0 degree stem height, 45mm stem length
*Brake
Size: S, M, ML, L, XL
SRAM Level Silver 4-piston hydraulic disc
Size: S, M, ML, L, XL
SRAM Level Silver Stealth 4-piston hydraulic disc
SRAM HS2 brake disc, 6 bolts, 180 mm
Disc size Maximum brake disc dimensions: frame: 200 mm, min. 180 mm, fork: see manufacturer
Weight
Weight M - 13.20 kg / 29.11 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.