Trek Top Fuel 9 (Gen 4) Full Suspension Bike 2025
Top Fuel 9 Gen 4 is an alloy trail bike that's ready to billy-goat up long climbs and rip back to the bottom for another lap. It gives you the rugged benefits of a lightweight aluminum frame, plus the upgrades you crave, like fully wireless shifting from SRAM's GX Eagle AXS transmission, 4-piston hydraulic brakes, and a 120mm/130mm FOX suspension package.
It's right for you if...
You like balance in most things you do – a combination of climbing power and descending confidence, nimble handling and full-suspension comfort, bike budget and component performance. You like the durability and affordability that an alloy frame offers, and want upgrades where they matter most.
The tech you get
An Alpha Platinum Aluminum frame equipped with a 4-way Mino Link lower shock mount for tweaking geometry and suspension leverage rate. A 130mm FOX Rhythm 34 fork with Float EVOL air spring and GRIP damper, plus 120mm of rear travel from a Fox Performance Float DPS shock with a 3-position damper. It's topped off with a wireless electronic SRAM GX Eagle transmission, 4-piston hydraulic disc brakes, a Bontrager Line dropper post, and Tubeless Ready Bontrager Line Comp 30 wheels.
The final word
Top Fuel 9 Gen 4 is built for those who want the best of both worlds. It's a great choice for all-around trail riders who may start the day with a pedal fest, but end it with long descents. It delivers on upgrades where you want them most, like your suspension and groupset, but keeps the price down with an alloy frame.
Why you'll love it
- Its lightweight frame and versatile geometry make it the perfect choice for all kinds of rides and all kinds of riders
- The 4-way Mino Link makes it easy to adjust your geometry or leverage rate for how and where you want to ride
- You get the sweetest alloy build with a fully wireless SRAM transmission, upgraded suspension, and a light yet rugged frame for all-mountain ripping
- The Alpha Platinum Aluminum frame is robust, yet light, and packs in updated internal frame storage for easy access to gear and snacks
- It's more upgrade-ready than ever, with room for bigger 140mm forks and longer-stroke shocks for up to 130mm of rear travel, plus room for extra-long dropper posts
SPECIFICATIONS
*Please note - spec applies to all sizes unless listed separately
Frameset
Frame Alpha Platinum Aluminum, internal storage, tapered head tube, internal guided routing, downtube guard, alloy rocker link, 4-way Mino Link, ABP, Boost148, 120mm travel
Fork Fox Rhythm 34, Float EVOL air spring, GRIP damper, tapered steerer, 44mm offset, Boost110, 15mm Kabolt axle, 130mm travel
Shock Fox Performance Float DPS, 2-position damper, 185mm x 50mm
Max compatible fork travel 140mm
Wheels
*Wheel front Size: S
Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, 27.5''
Size: M, ML, L, XL
Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, 29''
*Wheel rear Size: S
Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Boost148, 12mm thru axle, 27.5''
Size: M, ML, L, XL
Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Boost148, 12mm thru axle, 29''
Skewer rear Bontrager Switch thru axle, removable lever
*Tire Size: S
Bontrager Gunnison Pro XR, Tubeless Ready, wire bead, 60 tpi, 27.5x2.40''
Size: M, ML, L, XL
Bontrager Gunnison Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 29x2.40''
Tire part Bontrager TLR sealant, 180 ml/6 oz
Rim strip Bontrager TLR
Max tire size Frame: 29x2.50", Fork: See manufacturer
E-system
Battery SRAM eTap battery pack (with charger)
Drivetrain
Shifter SRAM AXS POD
Rear derailleur SRAM GX Eagle AXS, T-Type
Crank SRAM GX Eagle, T-Type, DUB, 30T, 55mm chainline, 170mm length
Bottom bracket SRAM DUB MTB Wide, 73mm, BSA threaded
Cassette SRAM Eagle XS-1275, T-Type, 10-52, 12 speed
Chain SRAM GX Eagle, T-Type, 12 speed
Max chainring size 1x: 34T, min 30T
Components
Saddle Verse Short Comp, steel rails, 145mm width
*Seatpost Size: S
Bontrager Line Dropper, 100mm travel, MaxFlow, internal routing, 34.9mm, 310mm length
Size: M, ML, L, XL
Bontrager Line Dropper, 170mm travel, MaxFlow, internal routing, 34.9mm, 4500mm length
Handlebar Bontrager Line, alloy, 35mm, 27.5mm rise, 780mm width
Grips Bontrager XR Trail Comp, nylon lock-on
Stem Bontrager Elite, 35mm, 0 degree, 45mm length
Brake SRAM Level Bronze 4-piston hydraulic disc
Brake rotor SRAM CenterLine, 6-bolt, round edge, 180mm
Rotor size Max brake rotor sizes - Frame: 200mm, min 180mm, Fork: see fork manufacturer
Accessories
Bag Bontrager BITS Internal Frame Storage Bag
Weight
Weight M - 14.38 kg / 31.71 lbs (with TLR sealant, no tubes)
Weight limit This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg).
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, materials, and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.
Bike and frame weights are based off pre-production painted frames at time of publication. Weights may vary in final production.
Trek Top Fuel 9 (Gen 4) Full Suspension Bike 2025
Top Fuel 9 Gen 4 is an alloy trail bike that's ready to billy-goat up long climbs and rip back to the bottom for another lap. It gives you the rugged benefits of a lightweight aluminum frame, plus the upgrades you crave, like fully wireless shifting from SRAM's GX Eagle AXS transmission, 4-piston hydraulic brakes, and a 120mm/130mm FOX suspension package.
It's right for you if...
You like balance in most things you do – a combination of climbing power and descending confidence, nimble handling and full-suspension comfort, bike budget and component performance. You like the durability and affordability that an alloy frame offers, and want upgrades where they matter most.
The tech you get
An Alpha Platinum Aluminum frame equipped with a 4-way Mino Link lower shock mount for tweaking geometry and suspension leverage rate. A 130mm FOX Rhythm 34 fork with Float EVOL air spring and GRIP damper, plus 120mm of rear travel from a Fox Performance Float DPS shock with a 3-position damper. It's topped off with a wireless electronic SRAM GX Eagle transmission, 4-piston hydraulic disc brakes, a Bontrager Line dropper post, and Tubeless Ready Bontrager Line Comp 30 wheels.
The final word
Top Fuel 9 Gen 4 is built for those who want the best of both worlds. It's a great choice for all-around trail riders who may start the day with a pedal fest, but end it with long descents. It delivers on upgrades where you want them most, like your suspension and groupset, but keeps the price down with an alloy frame.
Why you'll love it
- Its lightweight frame and versatile geometry make it the perfect choice for all kinds of rides and all kinds of riders
- The 4-way Mino Link makes it easy to adjust your geometry or leverage rate for how and where you want to ride
- You get the sweetest alloy build with a fully wireless SRAM transmission, upgraded suspension, and a light yet rugged frame for all-mountain ripping
- The Alpha Platinum Aluminum frame is robust, yet light, and packs in updated internal frame storage for easy access to gear and snacks
- It's more upgrade-ready than ever, with room for bigger 140mm forks and longer-stroke shocks for up to 130mm of rear travel, plus room for extra-long dropper posts
SPECIFICATIONS
*Please note - spec applies to all sizes unless listed separately
Frameset
Frame Alpha Platinum Aluminum, internal storage, tapered head tube, internal guided routing, downtube guard, alloy rocker link, 4-way Mino Link, ABP, Boost148, 120mm travel
Fork Fox Rhythm 34, Float EVOL air spring, GRIP damper, tapered steerer, 44mm offset, Boost110, 15mm Kabolt axle, 130mm travel
Shock Fox Performance Float DPS, 2-position damper, 185mm x 50mm
Max compatible fork travel 140mm
Wheels
*Wheel front Size: S
Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, 27.5''
Size: M, ML, L, XL
Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, 29''
*Wheel rear Size: S
Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Boost148, 12mm thru axle, 27.5''
Size: M, ML, L, XL
Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Boost148, 12mm thru axle, 29''
Skewer rear Bontrager Switch thru axle, removable lever
*Tire Size: S
Bontrager Gunnison Pro XR, Tubeless Ready, wire bead, 60 tpi, 27.5x2.40''
Size: M, ML, L, XL
Bontrager Gunnison Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 29x2.40''
Tire part Bontrager TLR sealant, 180 ml/6 oz
Rim strip Bontrager TLR
Max tire size Frame: 29x2.50", Fork: See manufacturer
E-system
Battery SRAM eTap battery pack (with charger)
Drivetrain
Shifter SRAM AXS POD
Rear derailleur SRAM GX Eagle AXS, T-Type
Crank SRAM GX Eagle, T-Type, DUB, 30T, 55mm chainline, 170mm length
Bottom bracket SRAM DUB MTB Wide, 73mm, BSA threaded
Cassette SRAM Eagle XS-1275, T-Type, 10-52, 12 speed
Chain SRAM GX Eagle, T-Type, 12 speed
Max chainring size 1x: 34T, min 30T
Components
Saddle Verse Short Comp, steel rails, 145mm width
*Seatpost Size: S
Bontrager Line Dropper, 100mm travel, MaxFlow, internal routing, 34.9mm, 310mm length
Size: M, ML, L, XL
Bontrager Line Dropper, 170mm travel, MaxFlow, internal routing, 34.9mm, 4500mm length
Handlebar Bontrager Line, alloy, 35mm, 27.5mm rise, 780mm width
Grips Bontrager XR Trail Comp, nylon lock-on
Stem Bontrager Elite, 35mm, 0 degree, 45mm length
Brake SRAM Level Bronze 4-piston hydraulic disc
Brake rotor SRAM CenterLine, 6-bolt, round edge, 180mm
Rotor size Max brake rotor sizes - Frame: 200mm, min 180mm, Fork: see fork manufacturer
Accessories
Bag Bontrager BITS Internal Frame Storage Bag
Weight
Weight M - 14.38 kg / 31.71 lbs (with TLR sealant, no tubes)
Weight limit This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg).
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, materials, and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.
Bike and frame weights are based off pre-production painted frames at time of publication. Weights may vary in final production.
Trek Top Fuel 9 (Gen 4) Full Suspension Bike 2025
SKU: 210000330298
- Regular price
- $6,499.99
- Sale price
- $6,499.99
- Regular price
-
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