2026 Trek Top Fuel 8 Gen 4 - Fury Red
The Top Fuel 8 Gen 4 is a nimble alloy trail bike that strikes a balance between quick climbing efficiency and descending confidence. It packs in a versatile 130 mm front and 120 mm rear travel for ripping over rocks and roots without sacrificing power on ascents. It's built from lightweight Alpha Platinum Aluminium that helps save your budget for bike trips, but packs in upgrades where they matter, like a 12-speed Shimano XT and SLX drivetrain, and a Fox Rhythm 34 fork.
OVERVIEW
It's right for you if...
You want an alloy full suspension that's ready to rip. You like to ride everything from cross-country hot laps to all-mountain adventures, and you need a bike that's light, versatile and confident. You've got an appreciation for the durability of aluminium, but want upgrades where they matter, like your drivetrain and suspension.
The tech you get
An Alpha Platinum Aluminium frame equipped with a 4-way Mino Link lower shock mount for tweaking geometry and suspension leverage rate. A 130 mm FOX Rhythm 34 fork with Float EVOL air spring and GRIP damper, plus 120 mm of rear travel from a FOX Performance Float shock with a 3-position damper. It's topped off with a Shimano XT/SLX 12-speed group set, hydraulic disc brakes, a Bontrager Line dropper post and Tubeless Ready Bontrager Line Comp 30 wheels.
The final word
The Top Fuel 8 Gen 4 is ready to cut loose from all-day climbs to rooty descents. It balances capability and efficiency, with just enough travel to keep the ride smooth without eating up your pedalling power. It gives you the perfect blend of affordability, with a rugged alloy frame and upgrades where they matter, like the Shimano XT/SLX drivetrain.
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 a sweet balance of price and performance with upgraded components and a rugged alloy frame
The Alpha Platinum Aluminium 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 140 mm forks and longer-stroke shocks for up to 130 mm of rear travel, plus room for extra-long dropper posts.
SPECS
*Please note – spec applies to all sizes unless listed separately
- Frame
-
Alpha Platinum Aluminium, internal storage, tapered head tube, internal guided routing, downtube guard, alloy rocker link, 4-way Mino Link, ABP, Boost148, 120 mm travel
- Fork
-
Fox Rhythm 34, Float EVOL air spring, GRIP damper, tapered steerer, 44 mm offset, Boost110, 15 mm Kabolt axle, 130 mm travel
- Shock
-
Fox Performance Float, 185 mm x 50 mm
- *Wheel front
-
Size: S
Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15 mm thru axle, 27.5"Size: S
Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15 mm thru-axle, 27.5"Size: XL, L, M, ML
Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15 mm thru-axle, 29" - *Wheel rear
-
Size: S
Bontrager Line Comp 30, High Strength 6000 Series Aluminium rim, Tubeless-Ready, Rapid Drive 108, 6-bolt, Shimano MicroSpline freehub, Boost148, 12 mm thru axle, 27.5"Size: S
Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Shimano MicroSpline freehub, Boost148, 12 mm thru-axle, 27.5"Size: XL, L, M, ML
Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Shimano MicroSpline freehub, Boost148, 12 mm thru-axle, 29"Size: XL, L, ML
Bontrager Line Comp 30, High Strength 6000 Series Aluminium rim, Tubeless-Ready, Rapid Drive 108, 6-bolt, Shimano MicroSpline freehub, Boost148, 12 mm thru axle, 29" - Skewer rear
- *Tyre
-
Size: S
Bontrager Gunnison Pro XR, Tubeless-Ready, wire bead, 60 tpi, 27.5x2.40"Size: XL, L, M, ML
Bontrager Gunnison Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 29x2.40" - Tyre part
-
Bontrager TLR sealant, 180 ml/6 oz
- Max tyre size
- Frame: 29x2.50", Fork: See manufacturer
- Shifter
-
Shimano XT M8100, 12-speed
- Rear derailleur
-
Shimano XT M8100, long cage
- Crank
-
Shimano Deore M6120, 30T ring, 55 mm chainline, 170 mm length
- Bottom bracket
-
Shimano BB-MT501 BSA
- Cassette
-
Shimano SLX M7100, 10-51T, 12-speed
- Chain
-
Shimano SLX M7100, 12-speed
- Max. chainring size
- 1x: 34T, min 30T
- Saddle
-
Bontrager Verse P3, chromoly rails
- *Seatpost
- Handlebar
-
Bontrager Line, alloy, 35 mm, 27.5 mm rise, 780 mm width
- *Grips
-
Size: XL, L, S , ML
Bontrager XR Trail Comp, nylon lock-on - Stem
- Brake
-
Shimano 4-piston hydraulic disc, M6100 lever, M6120 calliper
- *Brake rotor
-
Size: XL, L, S , ML
Shimano RT66, 6-bolt, 180 mmSize: XL, L, S , M, ML
Shimano RT66, 6-bolt, 180mm - Rotor size
- Max brake rotor sizes – Frame: 200 mm, min 180 mm, Fork: see fork manufacturer
- Weight
- M – 14.58 kg/32.15 lb (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).
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, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.
Bike and frame weights are based on pre-production painted frames at time of publication. Weights may vary in final production.
Original: $3,869.71
-70%$3,869.71
$1,160.91Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Top Fuel 8 Gen 4 is a nimble alloy trail bike that strikes a balance between quick climbing efficiency and descending confidence. It packs in a versatile 130 mm front and 120 mm rear travel for ripping over rocks and roots without sacrificing power on ascents. It's built from lightweight Alpha Platinum Aluminium that helps save your budget for bike trips, but packs in upgrades where they matter, like a 12-speed Shimano XT and SLX drivetrain, and a Fox Rhythm 34 fork.
OVERVIEW
It's right for you if...
You want an alloy full suspension that's ready to rip. You like to ride everything from cross-country hot laps to all-mountain adventures, and you need a bike that's light, versatile and confident. You've got an appreciation for the durability of aluminium, but want upgrades where they matter, like your drivetrain and suspension.
The tech you get
An Alpha Platinum Aluminium frame equipped with a 4-way Mino Link lower shock mount for tweaking geometry and suspension leverage rate. A 130 mm FOX Rhythm 34 fork with Float EVOL air spring and GRIP damper, plus 120 mm of rear travel from a FOX Performance Float shock with a 3-position damper. It's topped off with a Shimano XT/SLX 12-speed group set, hydraulic disc brakes, a Bontrager Line dropper post and Tubeless Ready Bontrager Line Comp 30 wheels.
The final word
The Top Fuel 8 Gen 4 is ready to cut loose from all-day climbs to rooty descents. It balances capability and efficiency, with just enough travel to keep the ride smooth without eating up your pedalling power. It gives you the perfect blend of affordability, with a rugged alloy frame and upgrades where they matter, like the Shimano XT/SLX drivetrain.
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 a sweet balance of price and performance with upgraded components and a rugged alloy frame
The Alpha Platinum Aluminium 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 140 mm forks and longer-stroke shocks for up to 130 mm of rear travel, plus room for extra-long dropper posts.
SPECS
*Please note – spec applies to all sizes unless listed separately
- Frame
-
Alpha Platinum Aluminium, internal storage, tapered head tube, internal guided routing, downtube guard, alloy rocker link, 4-way Mino Link, ABP, Boost148, 120 mm travel
- Fork
-
Fox Rhythm 34, Float EVOL air spring, GRIP damper, tapered steerer, 44 mm offset, Boost110, 15 mm Kabolt axle, 130 mm travel
- Shock
-
Fox Performance Float, 185 mm x 50 mm
- *Wheel front
-
Size: S
Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15 mm thru axle, 27.5"Size: S
Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15 mm thru-axle, 27.5"Size: XL, L, M, ML
Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15 mm thru-axle, 29" - *Wheel rear
-
Size: S
Bontrager Line Comp 30, High Strength 6000 Series Aluminium rim, Tubeless-Ready, Rapid Drive 108, 6-bolt, Shimano MicroSpline freehub, Boost148, 12 mm thru axle, 27.5"Size: S
Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Shimano MicroSpline freehub, Boost148, 12 mm thru-axle, 27.5"Size: XL, L, M, ML
Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Shimano MicroSpline freehub, Boost148, 12 mm thru-axle, 29"Size: XL, L, ML
Bontrager Line Comp 30, High Strength 6000 Series Aluminium rim, Tubeless-Ready, Rapid Drive 108, 6-bolt, Shimano MicroSpline freehub, Boost148, 12 mm thru axle, 29" - Skewer rear
- *Tyre
-
Size: S
Bontrager Gunnison Pro XR, Tubeless-Ready, wire bead, 60 tpi, 27.5x2.40"Size: XL, L, M, ML
Bontrager Gunnison Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 29x2.40" - Tyre part
-
Bontrager TLR sealant, 180 ml/6 oz
- Max tyre size
- Frame: 29x2.50", Fork: See manufacturer
- Shifter
-
Shimano XT M8100, 12-speed
- Rear derailleur
-
Shimano XT M8100, long cage
- Crank
-
Shimano Deore M6120, 30T ring, 55 mm chainline, 170 mm length
- Bottom bracket
-
Shimano BB-MT501 BSA
- Cassette
-
Shimano SLX M7100, 10-51T, 12-speed
- Chain
-
Shimano SLX M7100, 12-speed
- Max. chainring size
- 1x: 34T, min 30T
- Saddle
-
Bontrager Verse P3, chromoly rails
- *Seatpost
- Handlebar
-
Bontrager Line, alloy, 35 mm, 27.5 mm rise, 780 mm width
- *Grips
-
Size: XL, L, S , ML
Bontrager XR Trail Comp, nylon lock-on - Stem
- Brake
-
Shimano 4-piston hydraulic disc, M6100 lever, M6120 calliper
- *Brake rotor
-
Size: XL, L, S , ML
Shimano RT66, 6-bolt, 180 mmSize: XL, L, S , M, ML
Shimano RT66, 6-bolt, 180mm - Rotor size
- Max brake rotor sizes – Frame: 200 mm, min 180 mm, Fork: see fork manufacturer
- Weight
- M – 14.58 kg/32.15 lb (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).
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, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.
Bike and frame weights are based on pre-production painted frames at time of publication. Weights may vary in final production.
