The Trek Fuel EX 8 GX AXS is an evolved trail bike, dialled for riders who chase down rowdy descents and want a bike that's happy to pedal back to the top and do it again. The lightweight alloy frame pairs with a upgraded electronic wireless 12-speed SRAM GX Eagle transmission, while a 150 mm FOX Rhythm fork cushions the blow from rocks and roots. In-frame storage and adjustable geometry give you all the perks that the come with the carbon model, but without the lofty price tag.

The Fuel EX Gen 6 gives you 140/150 mm of travel and slack, adjustable geometry for an extra capable ride, plus, in-frame storage on all models – even alloy
You'll get upgraded components where it matters most, with SRAM's latest GX Eagle AXS wireless electronic transmission for the smoothest shifting under load
With the adjustable angle headset (angled cups sold separately) and Mino Link, you can choose from six different geometry configurations
The dropper post lets you lower your saddle on the fly so it's out of the way on descents

Sunset Cycles offers the 2025 Trek Fuel EX 8 GX AXS T-Type Gen 6 trail bike in Matte Keswick finish with up to 48 months 0% finance and free delivery.

The 2025 Trek FUEL EX (ALLOY) range: Fuel EX 8 XT Gen 6 (Mercury) | Fuel EX 8 XT Gen 6 (Navy) | Fuel EX 8 GX AXS T-Type Gen 6 (Keswick) | Fuel EX 8 GX AXS T-Type Gen 6 (Red)

Full Specification: Trek Fuel EX 8 GX AXS T-Type Gen 6 (Keswick) 2025 Trail Bike

Frame & Fork
Frame	Alpha Platinum Aluminium, internal storage, angle-adjust headset, Mino Link adjustable geometry, adjustable leverage rate, guided internal routing, magnesium rocker link, 34.9 mm seat tube, ISCG 05, 55 mm chain line, BSA 73, downtube guard, shuttle guard, ABP, UDH, Boost148, 140 mm travel
Fork	Fox Rhythm 36, Float EVOL air spring, GRIP damper, tapered steerer, 44 mm offset, Boost110, 15 mm Kabolt axle, 150 mm travel
Shock	Fox Performance Float X, 2-position damper, 185 mm x 55 mm
Wheels & Tyres
Wheel front	Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15 mm thru axle, 29"
Wheel rear	Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Boost148, 12 mm thru axle, 29"
Tyre	Bontrager XR5 Team Issue, Tubeless Ready, Inner Strength casing, aramid bead, 60 tpi, 29x2.50"
Drivetrain
Shifter	SRAM AXS POD
Rear derailleur	SRAM GX Eagle AXS, T-Type
Crank	SRAM GX Eagle, T-Type, DUB, 30T, 55 mm chain line, 170 mm length
Bottom bracket	SRAM DUB MTB Wide, 73 m, BSA threaded
Cassette	SRAM Eagle XS-1275, T-Type,10-52, 12-speed
Chain	SRAM GX Eagle, T-Type, 12-speed
Components
Saddle	Bontrager Arvada, hollow chromoly rails, 138 mm width
Seatpost	Size: S TranzX JD-YSP39, 100 mm travel, internal routing, 34.9 mm Size: M , ML TranzX JD-YSP39, 150 mm travel, internal routing, 34.9 mm Size: L , XL , XXL TranzX JD-YSP39, 170 mm travel, internal routing, 34.9 mm
Handlebar	Size: S Bontrager Line, alloy, 35 mm, 27.5 mm rise, 750 mm width Size: M , ML , L , XL , XXL Bontrager Line, alloy, 35 mm, 27.5 mm rise, 780 mm width
Grips	Bontrager XR Trail Elite, nylon lock-on
Stem	Size: S Bontrager Elite, 35 mm, 0-degree, 35 mm length Size: M , ML , L , XL , XXL Bontrager Elite, 35 mm, 0-degree, 45 mm length
Brake	SRAM DB 8 4-piston hydraulic disc
Brake rotor	SRAM CentreLine, 6-bolt, round-edge, 200 mm
Rotor size	Max brake rotor sizes - Frame: 203mm, Fork: see fork manufacturer
Weight
Weight	M - 15.88 kg / 35.01 lbs (with TLR sealant, no tubes)
Weight limit	This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).

Size Guide: Trek Fuel EX 8 GX AXS T-Type Gen 6 (Keswick) 2025 Trail Bike

Frame Size	Rider Height* (metric)	Rider Height* (imperial)
X Small	145 - 155 cm	4'9" - 5'1"
Small	155 - 165 cm	5'1" - 5'5"
Medium	165 - 176 cm	5'5" - 5'9"
Medium/Large	173 - 180 cm	5'8" - 5'11"
Large	177 - 188 cm	5'10" - 6'2"
X Large	188 - 195 cm	6'2" - 6'5"
XX Large	195 - 203 cm	6'5" - 6'8"
*This is for guidance only. You may be taller or shorter, it doesn't mean our bikes will not fit you. The best way to determine the correct bike size for you is to try one. Please contact us if you are in any doubt about the correct bike size for you.