Top Fuel AL Frameset Gen 4 is an alloy trail frame with 120mm of rear travel ready for your dream build. It takes the do-anything geometry of Top Fuel and leaves the rest to your imagination – build it up as a lightweight ride for soaring up climbs with a 120 or 130mm fork or go all-mountain with a 140mm fork. Go 29er or MX it up. The world is your oyster. Its 4-position Mino Link means you can tune it to how you ride and however you want to build it.

• Its lightweight frame and versatile geometry make it the perfect choice for all kinds of rides and all kinds of riders
• With a 120mm shock (compatibility for up to 130mm), and capability for running a 120 to 140mm fork, it's ready to be as playful and confident as you'd like
• The four-position Mino Link lets you tweak your geometry and suspension progression four different ways
• 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 ready for anything with room for extra-long dropper posts and compatibility for rolling 29er or MX wheel setups – or even 27.5" on small frames

Make Top Fuel yours

Opt for light parts and a 120mm fork for a featherweight Top Fuel, or a 140mm fork and longer-stroke 130mm rear shock for extra versatility. Room for a longer dropper and MX wheels lets you customize Top Fuel into an ultimate playful trail whip.

4-way Mino Link

Easily adjust the suspension and geometry four different ways for where and how you ride. With the flip of a chip, you can ride with more or less progressive suspension, and tweak your geometry for a slacker head tube and lower BB or steeper head tube and higher BB.

New internal storage with new BITS bags

New internal frame storage bags make it easy to ditch the pack and still carry your ride essentials.

Active Braking Pivot

Active Braking Pivot allows our engineers to tune how the suspension reacts to acceleration and braking forces independently. That means you get more confident control when you need it most.

A better way to produce aluminum

Starting in 2024, we began removing high-emission aluminum from our manufacturing and replacing it with low-emission aluminum made with renewable energy. By October 2025, nearly every alloy bike we make - this one included - had made the switch, driving a major drop in our footprint.

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
Shock	Fox Performance Float DPS, 2-position damper, 185mm x 50mm
Skewer Rear	Bontrager Switch thru axle, removable lever

Geometry Chart

B B Drop	1
B B Height	35.1
Chainstay Length	43.4
Eff Seat Tube Angle	76.5°
Eff Top Tube	55.8
Frame Reach	42.2
Frame Size Letter	S
Frame Stack	56.6
Head Angle	65.9°
Head Tube Length	10.5
Offset	4.3
Position	High
Seat Tube	36
Seat Tube Angle	69.5°
Standover	70.5
Trail	11.1
Wheelbase	115
Wheel Size	27.5"

Color

JUNIPER