2021 Trek Top Fuel 9.8 GX

The 2021 Trek Top Fuel 9.8 GX is a 29″ carbon frame full suspension trail bike with high-end components.

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2021 Trek Top Fuel 9.8 GX
  • MSRP $6,199
  • Weight 25.9 lbs / 11.7 kg
  • Suspension Full
  • Front Travel 120mm
  • Frame Carbon
  • Fork RockShox Sid
  • Wheels 29″ Carbon
  • Drivetrain 1 × 12
  • Groupset GX Eagle
  • Brakes Hydraulic Disc
  • Seatpost Dropper post

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Gearing

1 × 12 — 12 speed

2021 Trek Top Fuel 9.8 GX
28 mph
Similar Bikes
26 mph

The Top Fuel 9.8 GX is geared about the same as similar bikes for riding up hills.

Similar bikes won‘t keep up with the Top Fuel 9.8 GX while riding downhill or sprinting.


Estimated Spec Level

Estimated spec level of the Top Fuel 9.8 GX compared to other trail bikes. 99 Spokes analyzes the build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more to estimate the overall spec level of each bike.

Learn more

est. spec level →$0$1,000$2,000$3,000$4,000$5,000$6,000
This bike
Other trail bikes

Reviews

Geometry

Specs
Build
ForkRockShox SID Select+, DebonAir spring, Charger 2 RL damper, tapered steerer, 44mm offset, Boost110, 15mm Maxle Stealth, 120mm travel
Rear ShockRockShox SID Luxe Ultimate, DebonAir spring, Ultimate RL damper, 190x45mm
Bottom BracketSRAM DUB, 92mm, PressFit
StemBontrager Kovee Pro, 35mm, Knock Block, Blendr compatible, 13 degree, 70mm length
HandlebarBontrager Line Pro, OCLV Carbon, 35mm, 15mm rise, 750mm width
SaddleBontrager Montrose Elite, titanium rails, 138mm width
SeatpostBontrager Line Elite Dropper, 170mm travel, internal routing, 31.6mm, 480mm length
Groupset
Rear DerailleurSRAM GX Eagle
CrankSRAM GX 7K Eagle, DUB, 32T alloy ring, Boost (52mm chainline), 175mm length
ShiftersSRAM GX Eagle, 12 speed
CassetteSRAM Eagle XG-1275, 10-52, 12 speed
ChainSRAM GX Eagle, 12 speed
BrakesSRAM G2 RS 4-piston hydraulic disc
Wheels
RimsBontrager Kovee Elite 30 carbon, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle
Front HubBontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15mm thru axle
TiresBontrager XR3 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120tpi, 29x2.40''
Disk RotorsSRAM CenterLine, 6-bolt, round-edge, 180mm
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