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Trek Top Fuel 9.8 GX AXS Full Suspension Mountain Bike 2023 is a full suspension carbon mountain bike for riders who don't settle
Trek Top Fuel 9.8 GX AXS Full Suspension Mountain Bike 2023 is a full suspension carbon mountain bike for riders who don't settle

Trek Top Fuel 9.8 GX AXS Full Suspension Mountain Bike 2023 in Matte Raw Carbon

£4,250.00 £6,025.00 29% off
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Estimated Delivery & Collection Dates

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We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined
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Any item, except food, face masks or e-gift vouchers (full e-gift vouchers T&Cs are listed on the respective product pages) can be returned to us for any reason within 90 days, provided that the item has not been used or fitted and is returned in its original packaging with valid proof of purchase. It is recommended that you use a recorded delivery service to ensure your items are received by us. We cannot assume responsibility for items that are lost in the post.

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Items must be returned in their original packaging and unused. Refunds will be issued once the products have been received and inspected.

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Please note:

1. If the items we have sent you are faulty, damaged or not as we described, we will cover the cost of collection and the delivery of the correct item.

2. If we have delivered the correct bike but upon inspection, you decide the bike is not the one for you, we will charge you £24.99 for collection. If you do not have the original box, we will charge you an additional £15 to provide one.

Refunds will be processed using the same method of payment used for the original purchase. Credit & debit card refunds must be made to the card used for the original purchase.

We are unable to offer a refund without a valid receipt.

Trek Top Fuel 9.8 GX AXS Full Suspension Mountain Bike 2023 in Matte Raw Carbon




Top Fuel 9.8 is a full-suspension carbon mountain bike for riders who don't settle. Not for parts nor for one style of riding. It combines a high-end parts package – including a new SRAM GX Eagle AXS wireless electronic drivetrain – with a low-weight carbon frame for one unbelievably fun rig that's fast on flow and fun to ride on techy singletrack.

You’re looking for a do-it-all full-suspension mountain bike that's efficient and fast, but doesn't shy away from some bigger stuff. You want the added stiffness and weight savings of a carbon frame, and want blazing-fast wireless electronic shifting.

A light and stiff full carbon frame, 130 mm RockShox Pike Select+ fork, 120 mm of rear travel with a RockShox Deluxe Ultimate RCT shock and a SRAM GX Eagle AXS wireless electronic drivetrain with an extra-low 52-tooth climbing gear. Plus, wide carbon Bontrager Line Elite 30 wheels with a 108-tooth Rapid Drive hub for instant engagement, Bontrager Line Elite Dropper and carbon handlebars.

The Top Fuel 9.8 is a ridiculously fun carbon down-country bike with upgraded parts that give you big benefits on the trail, like more speed from the carbon wheels, more grip from the ultra-smooth suspension and faster, more precise shifts from the AXS drivetrain.

Key Features & Benefits:

  • Hydraulic Disc Brakes:Accurate and powerful braking capacity to keep you in control in all weather conditions.
  • Knock block 2.0:New, removable knock block has a bigger steering angle to keep cables and hoses safe without sacrificing turning radius
  • A sleek internal storage:compartment gives you a versatile spot to stow tools and gear

Full Specification:

  • Frame:OCLV Mountain Carbon, internal storage, tapered head tube, Knock Block 2.0, internal guided routing, downtube guard, magnesium rocker link, Mino Link, ABP, Boost148, 120 mm travel
  • Rear Shock:RockShox Deluxe Ultimate RCT, 185 mm x 50 mm
  • Fork:RockShox Pike Select+, DebonAir spring, Charger 3 RC2 damper, tapered steerer, 44mm offset, Boost110, 15mm Maxle Stealth, 130mm travel
  • Number of Gears:12
  • Gear Shifters:SRAM GX Eagle AXS, 12-speed
  • Chainset:SRAM GX Eagle, DUB MTB Wide, 30T, 55 mm chainline, 170-5 length
  • Chainrings:30T
  • Rear Cassette:SRAM Eagle XG-1275, 10-52, 12-speed
  • Chain:SRAM GX Eagle, 12-speed
  • Rear Derailleur:SRAM GX Eagle AXS
  • Bottom Bracket:SRAM DUB MTB Wide, 73 m, BSA threaded
  • Pedals:Not supplied:Shop pedals here
  • Rims:Bontrager Line Elite 30, OCLV Mountain Carbon, Tubeless Ready
  • Front Hub:Bontrager alloy, sealed bearing, 6-bolt, Boost110, 15mm thru axle
  • Rear Hub:Bontrager alloy, sealed bearing, 6-bolt, 108T Rapid Drive, SRAM XD driver, Boost148, 12 mm thru axle
  • Front Tyre:Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 29.x2.40"
  • Rear Tyre:Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 29.x2.40"
  • Brakes:SRAM G2 RS hydraulic disc, SRAM CenterLine, 6-bolt, round edge, 180-160 mm
  • Handlebars:Bontrager Line Pro, OCLV Carbon, 35 mm, 27.5 mm rise, 750-780 mm width
  • Handlebar Grips:Bontrager XR Trail Elite, nylon lock-on
  • Headset:Knock Block 2.0 Integrated, 72-degree radius (includes infinite-radius chip), sealed cartridge bearing, 1-1/8" top, 1.5" bottom
  • Stem:Bontrager Line Pro, 35 mm, Knock Block, Blendr-compatible, 0-degree, 45 mm length
  • Saddle:Bontrager Arvada, austenite rails, 138 mm width
  • Seatpost:Bontrager Line Elite Dropper, 100-200 mm travel, MaxFlow, internal routing, 34.9 mm
  • Accessories:Bontrager BITS Internal Frame Storage Bag
  • Weight:M- 12.60 kg / 27.78 lb
Manufacturers reserve the right to change specifications without notice based on availability at the point of assembly.

Size Guide for Trek Top Fuel

SizeRider HeightRider HeightInseamInseam
S155 - 165 cm5'1" - 5'5"74 - 78 cm29" - 31"
M165 - 176 cm5'5" - 5'9"79 - 83 cm31" - 33"
M/L173 - 180 cm5'8" - 5'11"81 - 86 cm32" - 34"
L177 - 188 cm5'10" - 6'2"84 - 89 cm33" - 35"
XL188 - 195 cm6'2" - 6'5"89 - 91 cm35" - 36"
2XL195 - 203 cm6'5" - 6'8"91 - 97 cm36" - 38"

Geometry Information for Trek Top Fuel 5, 7, & 8

Frame size number15.5"15.5"17.5"17.5"18.5"18.5"19.5"19.5"21.5"21.5"21.5"23.0"23.0"
Geometry positionHighLowHighLowHighLowHighLowHighHighLowHighLow
Wheel size29"29"29"29"29"29"29"29"29"29"29"29"29"
A — Seat tube39.539.5424243.543.545455050505454
B — Seat tube angle70.4°70.0°70.4°70.0°70.4°70.0°70.4°70.0°70.4°70.4°70.0°70.4°70.0°
Effective seat tube angle76.4°76.0°76.4°76.0°76.4°76.0°76.4°76.0°76.4°76.4°76.0°76.4°76.0°
C — Head tube length1010101010.510.5111112.512.512.513.513.5
D — Head angle66.4°66.0°66.4°66.0°66.4°66.0°66.4°66.0°66.4°66.4°66.0°66.4°66.0°
E — Effective top tube56.756.859.759.861.461.56363.165.365.365.467.567.6
F — Bottom bracket height34.333.834.333.834.333.834.333.834.334.333.834.333.8
G — Bottom bracket drop3.
H — Chainstay length43.443.543.443.543.443.543.443.543.443.443.543.443.5
I — Offset4.
J — Trail11.511.811.511.811.511.811.511.811.511.511.811.511.8
K — Wheelbase115115.1118118.1119.7119.8121.4121.5124124124.1126.5126.5
L — Standover71.971.57473.574.5747574.5767675.57776.5
M — Frame reach42.44245.44546.946.548.44850.450.45052.452
N — Frame stack59.259.559.259.559.76060.160.561.561.561.862.462.7

Geometry Information for Trek Top Fuel Carbon Frames

Frame size number15.5"15.5"17.5"17.5"18.5"18.5"19.5"19.5"21.5"21.5"
Frame size letterSSMMMLMLLLXLXL
Geometry positionHighLowHighLowHighLowHighLowHighLow
Wheel size29"29"29"29"29"29"29"29"29"29"
A — Seat tube39.539.5424243.543.545455050
B — Seat tube angle69.9°69.5°69.9°69.5°69.9°69.5°69.9°69.6°69.9°69.6°
Effective seat tube angle75.9°75.5°75.9°75.5°75.9°75.5°75.9°75.6°75.9°75.6°
C — Head tube length1010101010.510.5111112.512.5
D — Head angle65.9°65.5°65.9°65.5°65.9°65.5°65.9°65.6°65.9°65.6°
E — Effective top tube56.95759.96061.561.663.163.265.465.5
F — Bottom bracket height34.634.134.634.134.634.134.634.134.634.1
G — Bottom bracket drop2.
H — Chainstay length43.443.543.443.543.443.543.443.543.443.5
I — Offset4.
J — Trail1212.31212.31212.31212.31212.3
K — Wheelbase115.3115.4118.3118.4120120.1121.7121.8124.4124.4
L — Standover72.471.974.473.974.974.475.474.976.475.9
M — Frame reach41.941.544.944.546.44647.947.549.949.5
N — Frame stack59.659.959.659.96060.460.560.861.962.2

Warranty Information for Trek:

Lifetime warranty on Frame sets (frame and rigid fork), main frame and full suspension swing arms for the lifetime of the original owner, and Bontrager wheels with carbon rims.

2-year warranty on Rear suspension linkage components, including bearings, rocker link and accompanying hardware and components, Bontrager wheels with alloy rims, Paint and transfers.

For full warranty policy please visit

Sizing Information
Trek Sizing Guide
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