The Versatile Trail Slayer
The TREK Fuel EX 9.8 GX AXS Gen 6 represents the sixth generation of Trek’s iconic trail platform . Completely redesigned from the ground up, this bike features longer, slacker geometry, increased travel, and a host of adjustable features that make it one of the most versatile trail bikes on the market .
OCLV Mountain Carbon Frame
The frame is constructed from Trek’s premium OCLV Mountain Carbon, offering an exceptional strength-to-weight ratio while remaining stiff and responsive . The TREK Fuel EX 9.8 GX AXS Gen 6 features internal frame storage with a Bontrager BITS bag, allowing you to stash ride essentials inside the downtube .
Fox Performance 36 Fork and Float X Shock
Up front, a Fox Performance 36 fork delivers 150mm of travel with a Float EVOL air spring and GRIP damper for small-bump compliance and precise control . Out back, a Fox Performance Float X shock provides 140mm of travel with a 2-position damper . Together, they create a suspension package that eats up chop and chunder while remaining confident on drops .
SRAM GX Eagle AXS Wireless Drivetrain
This bike features SRAM’s wireless electronic shifting system, delivering crisp, reliable gear changes even under load . The TREK Fuel EX 9.8 GX AXS Gen 6 comes with a 10-52T cassette and 30T chainring, providing massive climbing range for any trail .
Bontrager Line Elite Carbon Wheels
Rolling on Bontrager Line Elite 30 carbon wheels with Rapid Drive 108 hubs, this bike offers near-instant acceleration with 108 points of engagement . The TREK Fuel EX 9.8 GX AXS Gen 6 tracks through technical terrain with precision, while the carbon construction reduces weight without sacrificing durability.
Mino Link Adjustable Geometry
The frame features Mino Link technology that lets you quickly fine-tune your geometry . Flip the link to adjust the head tube angle by half a degree and bottom bracket height by up to 8mm, allowing you to adapt the bike’s personality from steep and technical to fast and flowy .
Active Braking Pivot (ABP) Suspension
Trek’s exclusive ABP design keeps the suspension active while braking, which is often when you need it most . The TREK Fuel EX 9.8 GX AXS Gen 6 maintains traction through corners even under hard braking, giving you more confident control on steep descents.
Adjustable Leverage Rate
Flip a chip on the rocker link to adjust the suspension leverage rate . Choose “Less Progressive” for a plusher feel ideal for rugged trails with square-edge bumps, or “More Progressive” when hitting big features or running a coil shock .
SRAM Code R or Maven Bronze Brakes
Depending on the build year, the bike is equipped with either SRAM Code R 4-piston or Maven Bronze 4-piston hydraulic disc brakes . Both deliver exceptional stopping power with 180mm rotors (200mm on larger sizes), providing fade-free performance on the steepest descents .
Mullet-Ready Frame Design
The Fuel EX is mullet-ready, allowing you to mix 29″ front and 27.5″ rear wheels . Just throw Mino Link into “High,” toss on a 160mm fork, and enjoy the nimble rear end with the rollover of a 29er.
Internal Frame Storage and Routing
Guided internal routing keeps the cockpit clean and simplifies maintenance . A threaded BSA 73mm bottom bracket is more robust than press-fit designs, holding up in nasty conditions and making service easier .
Bontrager SE5 Team Issue Tires
The bike comes equipped with Bontrager SE5 Team Issue tires featuring Core Strength sidewalls for puncture resistance . They’re Tubeless Ready with included TLR sealant, offering better traction, fewer flats, and reduced weight .
RockShox Reverb AXS Dropper Post
A wireless RockShox Reverb AXS dropper post lets you lower your saddle at the push of a button . Travel is size-specific: 100mm for size Small, 150mm for Medium, and 170/185mm for larger sizes .
Sizing and Fit
The Fuel EX is available in seven sizes from XS to XXL :
- XS: 4’9″ – 5’1″ (145-155 cm) — 27.5″ wheels
- S: 5’1″ – 5’5″ (155-165 cm) — 27.5″ or 29″ wheels
- M: 5’5″ – 5’9″ (165-176 cm) — 29″ wheels
- ML: 5’8″ – 5’11” (173-180 cm) — 29″ wheels
- L: 5’10” – 6’2″ (177-188 cm) — 29″ wheels
- XL: 6’2″ – 6’5″ (188-196 cm) — 29″ wheels
Pros:
- OCLV Mountain Carbon frame with internal storage
- Fox Performance 36 fork (150mm) + Float X shock (140mm)
- SRAM GX Eagle AXS wireless 12-speed drivetrain
- Bontrager Line Elite 30 carbon wheels (Rapid Drive 108 hubs)
- Mino Link adjustable geometry (six configurations with angle-adjust headset)
- ABP suspension keeps traction under braking
- Adjustable leverage rate for coil shock compatibility
- Mullet-ready (27.5″ rear / 29″ front)
- Threaded BSA bottom bracket
- In-frame storage with BITS bag
- Weight: ~31-33 lbs (14.15-14.78 kg)
Cons:
- Premium price point (~6,000−8,300 USD)
- SRAM Code R brakes adequate but not top-tier (upgraded to Maven on newer builds)
- Integrated bar/stem limits adjustability
- A little heavy compared to lightweight trail bikes
Frame and Suspension Specifications
- Frame: OCLV Mountain Carbon, internal storage, angle-adjust headset, Mino Link, adjustable leverage rate, magnesium rocker link, 34.9mm seat tube, ISCG 05, 55mm chainline, BSA 73, downtube guard, shuttle guard, ABP, UDH, Boost148, 140mm travel
- Fork: Fox Performance 36, Float EVOL air spring, GRIP damper, 44mm offset, Boost110, 15mm Kabolt axle, 150mm travel
- Rear Shock: Fox Performance Float X, 2-position damper, 185mm x 55mm
Drivetrain Specifications
- Shifters: SRAM Eagle AXS POD
- Rear Derailleur: SRAM GX Eagle AXS (Standard) / T-Type on newer models
- Crankset: SRAM GX Eagle, DUB, 30T ring, 55mm chainline, 170mm length
- Cassette: SRAM Eagle XG-1275 (or XS-1275 T-Type), 10-52T, 12-speed
- Chain: SRAM GX Eagle, 12-speed
Brake and Wheel Specifications
- Brakes: SRAM Code R or Code Bronze 4-piston hydraulic disc / Maven Silver on newer builds
- Rotors: SRAM CenterLine, 6-bolt, 180mm (200mm on larger sizes)
- Wheels: Bontrager Line Elite 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108 rear hub
- Tires: Bontrager SE5 Team Issue, Tubeless Ready, Core Strength sidewalls, 29×2.50″ (27.5×2.50″ on XS/S)
Component Specifications
- Handlebar/Stem: Integrated design — Bontrager RSL Carbon bar/stem (820mm width, 35mm length) or Line Pro components
- Grips: Bontrager XR Trail Elite, nylon lock-on
- Saddle: Bontrager Arvada, austenite rails, 138mm width
- Seatpost: RockShox Reverb AXS wireless or Bontrager Line Elite dropper (size-specific travel)
Weight and Limits
- Weight: 14.15-14.78 kg (31.21-32.59 lbs) depending on spec
- Weight Limit: 136 kg (300 lbs) total (bike, rider, cargo combined)
Colors
Who Is This Bike For?
The TREK Fuel EX 9.8 GX AXS Gen 6 is perfect for:
- Trail riders seeking a versatile, capable full-suspension bike
- Riders who want wireless shifting without breaking the bank
- Anyone who values geometry adjustability for different terrain
- Mountain bikers who prioritize traction and control on descents
- Riders who want a “one bike quiver” for everything from flow trails to technical descents
Why Choose the Fuel EX 9.8 GX AXS Gen 6?
The TREK Fuel EX 9.8 GX AXS Gen 6 represents the sweet spot in Trek’s trail lineup. It delivers the premium OCLV Carbon frame and adjustable geometry of the range-topping models, paired with the proven performance of Fox Performance suspension and SRAM’s excellent GX AXS wireless shifting .
The combination of 150mm front and 140mm rear travel, ABP suspension, and adjustable geometry makes this bike equally capable on steep climbs and technical descents . The Mino Link and adjustable leverage rate let you fine-tune the bike to your exact preferences, while the mullet-ready design offers even more versatility .
At approximately 31-33 lbs, it’s not the lightest trail bike, but as the adage goes, “a good bike weighs what it ought to” . The Fuel EX 9.8’s weight translates directly into durability, stability, and confidence at speed .
For riders who want the ultimate do-it-all trail bike with premium features at a more accessible price point, the TREK Fuel EX 9.8 GX AXS Gen 6 is an outstanding choice.
For more options, browse our Collection of Trail Mountain Bikes or read our Mountain Bike Buying Guide to find your perfect match.
Yoast SEO Checklist – All Gre Completely redesigned from the ground up, this bike features longer, slacker geometry, increased travel, and a host of adjustable features that make it one of the most versatile trail bikes on the market .
OCLV Mountain Carbon Frame
The frame is constructed from Trek’s premium OCLV Mountain Carbon, offering an exceptional strength-to-weight ratio while remaining stiff and responsive . The TREK Fuel EX 9.8 GX AXS Gen 6 features internal frame storage with a Bontrager BITS bag, allowing you to stash ride essentials inside the downtube .
Fox Performance 36 Fork and Float X Shock
Up front, a Fox Performance 36 fork delivers 150mm of travel with a Float EVOL air spring and GRIP damper for small-bump compliance and precise control . Out back, a Fox Performance Float X shock provides 140mm of travel with a 2-position damper . Together, they create a suspension package that eats up chop and chunder while remaining confident on drops .
SRAM GX Eagle AXS Wireless Drivetrain
This bike features SRAM’s wireless electronic shifting system, delivering crisp, reliable gear changes even under load . The TREK Fuel EX 9.8 GX AXS Gen 6 comes with a 10-52T cassette and 30T chainring, providing massive climbing range for any trail .
Bontrager Line Elite Carbon Wheels
Rolling on Bontrager Line Elite 30 carbon wheels with Rapid Drive 108 hubs, this bike offers near-instant acceleration with 108 points of engagement . The TREK Fuel EX 9.8 GX AXS Gen 6 tracks through technical terrain with precision, while the carbon construction reduces weight without sacrificing durability.
Mino Link Adjustable Geometry
The frame features Mino Link technology that lets you quickly fine-tune your geometry . Flip the link to adjust the head tube angle by half a degree and bottom bracket height by up to 8mm, allowing you to adapt the bike’s personality from steep and technical to fast and flowy .
Active Braking Pivot (ABP) Suspension
Trek’s exclusive ABP design keeps the suspension active while braking, which is often when you need it most . The TREK Fuel EX 9.8 GX AXS Gen 6 maintains traction through corners even under hard braking, giving you more confident control on steep descents.
Adjustable Leverage Rate
Flip a chip on the rocker link to adjust the suspension leverage rate . Choose “Less Progressive” for a plusher feel ideal for rugged trails with square-edge bumps, or “More Progressive” when hitting big features or running a coil shock .
SRAM Code R or Maven Bronze Brakes
Depending on the build year, the bike is equipped with either SRAM Code R 4-piston or Maven Bronze 4-piston hydraulic disc brakes . Both deliver exceptional stopping power with 180mm rotors (200mm on larger sizes), providing fade-free performance on the steepest descents .
Mullet-Ready Frame Design
The Fuel EX is mullet-ready, allowing you to mix 29″ front and 27.5″ rear wheels . Just throw Mino Link into “High,” toss on a 160mm fork, and enjoy the nimble rear end with the rollover of a 29er.
Internal Frame Storage and Routing
Guided internal routing keeps the cockpit clean and simplifies maintenance . A threaded BSA 73mm bottom bracket is more robust than press-fit designs, holding up in nasty conditions and making service easier .
Bontrager SE5 Team Issue Tires
The bike comes equipped with Bontrager SE5 Team Issue tires featuring Core Strength sidewalls for puncture resistance . They’re Tubeless Ready with included TLR sealant, offering better traction, fewer flats, and reduced weight .
RockShox Reverb AXS Dropper Post
A wireless RockShox Reverb AXS dropper post lets you lower your saddle at the push of a button . Travel is size-specific: 100mm for size Small, 150mm for Medium, and 170/185mm for larger sizes .
Sizing and Fit
The Fuel EX is available in seven sizes from XS to XXL :
- XS: 4’9″ – 5’1″ (145-155 cm) — 27.5″ wheels
- S: 5’1″ – 5’5″ (155-165 cm) — 27.5″ or 29″ wheels
- M: 5’5″ – 5’9″ (165-176 cm) — 29″ wheels
- ML: 5’8″ – 5’11” (173-180 cm) — 29″ wheels
- L: 5’10” – 6’2″ (177-188 cm) — 29″ wheels
- XL: 6’2″ – 6’5″ (188-196 cm) — 29″ wheels
Pros:
- OCLV Mountain Carbon frame with internal storage
- Fox Performance 36 fork (150mm) + Float X shock (140mm)
- SRAM GX Eagle AXS wireless 12-speed drivetrain
- Bontrager Line Elite 30 carbon wheels (Rapid Drive 108 hubs)
- Mino Link adjustable geometry (six configurations with angle-adjust headset)
- ABP suspension keeps traction under braking
- Adjustable leverage rate for coil shock compatibility
- Mullet-ready (27.5″ rear / 29″ front)
- Threaded BSA bottom bracket
- In-frame storage with BITS bag
- Weight: ~31-33 lbs (14.15-14.78 kg)
Cons:
- Premium price point (~6,000−8,300 USD)
- SRAM Code R brakes adequate but not top-tier (upgraded to Maven on newer builds)
- Integrated bar/stem limits adjustability
- A little heavy compared to lightweight trail bikes
Frame and Suspension Specifications
- Frame: OCLV Mountain Carbon, internal storage, angle-adjust headset, Mino Link, adjustable leverage rate, magnesium rocker link, 34.9mm seat tube, ISCG 05, 55mm chainline, BSA 73, downtube guard, shuttle guard, ABP, UDH, Boost148, 140mm travel
- Fork: Fox Performance 36, Float EVOL air spring, GRIP damper, 44mm offset, Boost110, 15mm Kabolt axle, 150mm travel
- Rear Shock: Fox Performance Float X, 2-position damper, 185mm x 55mm
Drivetrain Specifications
- Shifters: SRAM Eagle AXS POD
- Rear Derailleur: SRAM GX Eagle AXS (Standard) / T-Type on newer models
- Crankset: SRAM GX Eagle, DUB, 30T ring, 55mm chainline, 170mm length
- Cassette: SRAM Eagle XG-1275 (or XS-1275 T-Type), 10-52T, 12-speed
- Chain: SRAM GX Eagle, 12-speed
Brake and Wheel Specifications
- Brakes: SRAM Code R or Code Bronze 4-piston hydraulic disc / Maven Silver on newer builds
- Rotors: SRAM CenterLine, 6-bolt, 180mm (200mm on larger sizes)
- Wheels: Bontrager Line Elite 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108 rear hub
- Tires: Bontrager SE5 Team Issue, Tubeless Ready, Core Strength sidewalls, 29×2.50″ (27.5×2.50″ on XS/S)
Component Specifications
- Handlebar/Stem: Integrated design — Bontrager RSL Carbon bar/stem (820mm width, 35mm length) or Line Pro components
- Grips: Bontrager XR Trail Elite, nylon lock-on
- Saddle: Bontrager Arvada, austenite rails, 138mm width
- Seatpost: RockShox Reverb AXS wireless or Bontrager Line Elite dropper (size-specific travel)
Weight and Limits
- Weight: 14.15-14.78 kg (31.21-32.59 lbs) depending on spec
- Weight Limit: 136 kg (300 lbs) total (bike, rider, cargo combined)
Colors
Who Is This Bike For?
The TREK Fuel EX 9.8 GX AXS Gen 6 is perfect for:
- Trail riders seeking a versatile, capable full-suspension bike
- Riders who want wireless shifting without breaking the bank
- Anyone who values geometry adjustability for different terrain
- Mountain bikers who prioritize traction and control on descents
- Riders who want a “one bike quiver” for everything from flow trails to technical descents
Why Choose the Fuel EX 9.8 GX AXS Gen 6?
The TREK Fuel EX 9.8 GX AXS Gen 6 represents the sweet spot in Trek’s trail lineup. It delivers the premium OCLV Carbon frame and adjustable geometry of the range-topping models, paired with the proven performance of Fox Performance suspension and SRAM’s excellent GX AXS wireless shifting .
The combination of 150mm front and 140mm rear travel, ABP suspension, and adjustable geometry makes this bike equally capable on steep climbs and technical descents . The Mino Link and adjustable leverage rate let you fine-tune the bike to your exact preferences, while the mullet-ready design offers even more versatility .
At approximately 31-33 lbs, it’s not the lightest trail bike, but as the adage goes, “a good bike weighs what it ought to” . The Fuel EX 9.8’s weight translates directly into durability, stability, and confidence at speed .
For riders who want the ultimate do-it-all trail bike with premium features at a more accessible price point, the TREK Fuel EX 9.8 GX AXS Gen 6 is an outstanding choice.
For more options, browse our Collection of Trail Mountain Bikes or read our Mountain Bike Buying Guide to find your perfect match.
