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 aluminum, but want upgrades where they matter, like your drivetrain and suspension.

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 shock with a 3-position damper. It's topped off with a Shimano XT/SLX 12-speed groupset, hydraulic disc brakes, a Bontrager Line dropper post, and Tubeless Ready Bontrager Line Comp 30 wheels.

The final word

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 pedaling 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

1. Its lightweight frame and versatile geometry make it the perfect choice for all kinds of rides and all kinds of riders
2. The 4-way Mino Link makes it easy to adjust your geometry or leverage rate for how and where you want to ride
3. You get a sweet balance of price and performance with upgraded components and a rugged alloy frame
4. The Alpha Platinum Aluminum frame is robust, yet light, and packs in updated internal frame storage for easy access to gear and snacks
5. 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

TECHNICAL 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, High Strength 6000 Series Aluminum rim, Tubeless Ready, Rapid Drive 108, 6-bolt, Shimano MicroSpline freehub, Boost148, 12mm thru axle, 27.5''
Size: M, ML, L, XL
Bontrager Line Comp 30, High Strength 6000 Series Aluminum rim, Tubeless Ready, Rapid Drive 108, 6-bolt, Shimano MicroSpline freehub, 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
Max tire size    Frame: 29x2.50", Fork: See manufacturer

Drivetrain
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

Components
Saddle    Bontrager Verse P3, chromoly rails
*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    Size: S , M, ML, L, XL
Shimano M6120 4-piston hydraulic disc
Size: S , M, ML, L, XL
Shimano 4-piston hydraulic disc, M6100 lever, M6120 caliper
Brake rotor    Shimano RT66, 6-bolt, 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 - 14.58 kg / 32.15 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.