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Why we love it

Trek Top Fuel 8 Gen 4 MTB

You’ve got to get up to get down – make it a party whichever way you point it on the Top Fuel. This spry 29er is ready to make light work of long climbs and cut loose on rowdy descents. Whether you’re heading out for midweek hot laps or weekend long adventures packed with lung-crushing climbs and surreal descents, the Top Fuel brings something to the party for everyone.

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.

Make the Top Fuel yours

Opt for light parts and a 120 mm fork for a featherweight Top Fuel, or a 140 mm fork and longer-stroke 130 mm rear shock for extra versatility. Room for a longer dropper and MX wheels lets you customise the 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. At the flip of a coin, 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.

stem Bontrager Elite 35 Stem
handlebar Bontrager Handlebar Line, 35x780mm, 27.5mm Rise
saddle Bontrager Verse P3, chromoly rails
type Dropper
frame Alpha Platinum Aluminum, internal storage, tapered head tube, internal guided routing, downtube guard, OCLV Next rocker link, Mino 4 link, ABP, Boost148, 120mm travel
bb standard BSA, 68mm, Threaded
tire clearance 2.5"
spring type Air
fork Fox Rhythm 34, 27.5, Float EVOL air spring, GRIP damper, tapered steerer, 44mm offset, Boost110, 15mm Kabolt axle, 130mm travel
shock Fox Performance Float, 185mm x 50mm, 54mm upper trunnion mount, 30mm x 8mm lower eyelet, Fox part number 972-61-267 - XL, L, S , M, ML: Fox Performance Float, 185mm x 50mm; XL, L, S , M, ML: Fox Performance Float DPS, 2-position damper, 185mm x 50mm
bottom bracket Bottom Bracket Shimano Bottom Bracket Deore BB-MT501
seatpost Bontrager Line Dropper, 100mm travel, MaxFlow, internal routing, 34.9mm, 310mm length - S : Bontrager Line Dropper, 100mm travel, MaxFlow, internal routing, 34.9mm, 310mm length; XL, L, M, ML: Bontrager Line Dropper, 170mm travel, MaxFlow, internal routin
grips Bontrager Grips XR Trail Comp Black - XL, L, S , M, ML: Bontrager XR Trail Comp, nylon lock-on; XL, L, S , M, ML: Trek Line Comp, nylon lock-on
rear derailleur Shimano Deore XT Derailleur Rear. Item Number: RD-M8100, 12-Speed, Direct Attachment, SGS Cage, Max 51T, Shadow Plus design
crank Shimano DEORE Crankset. Item Number: FC-M6120-1, 1x, 12-Speed, 30T, 170mm, HollowTech 2,
shifters Shimano Deore XT Shifter. Item Number: SL-M8100-R, 12-Speed, Rapidfire Plus, Inner Cable Length: 2050mm, Without Optical Gear Display.
cassette Shimano SLX Cassette. Item Number: CS-M7100, 12-Speed, 10-12-14-16-18-21-24-28-33-39-45-51T
chain Shimano SLX Chain. Item Number: M7100, 12-Speed, With Quick Link
brakes Shimano Deore Brake Set
tires Bontrager Gunnison Pro XR, Tubeless Ready, wire bead, 60 tpi, 27.5x2.40'', tan sidewall - S : Bontrager Gunnison Pro XR, Tubeless Ready, wire bead, 60 tpi, 27.5x2.40''; XL, L, M, ML: Bontrager Gunnison Pro XR, Tubeless Ready, dual compound, aramid bead, 6

Since 1989

Built for adventure

More Than A Store

More Than A Store

Whether you’re renting a mountain bike, upgrading your ski gear, or looking for the best local beta, we’re here to make sure you leave with the right gear and the confidence to use it.

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Racers Rewards

Our easy-to-join loyalty program, designed to thank you for your continued support with exclusive benefits. Your adventures just got a little more rewarding.

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Community & Partnerships

Community & Partnerships

It's our responsibility to foster accessibility for all, as well as keep our land thriving for generations to come - and we're proud to champion our community's adventure spirit.

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What our customers say

Malcolm A.

Verified Buyer

"I've been lucky enough to ski all over the world over the decades. So when I say Racers Edge Wanaka are not only world class but best in class, I'm comparing them globally. Their level of knowledge is second to none and is backed up by customer service I have seldom seen in any industry. They are passionate about skiing and even more so, they are passionate about skiers."

Citrine H.

Verified Buyer

"Wow! My sister and I popped into the store yesterday morning to buy some ski boots. Jessica gave us THE BEST service I have ever received. She was so patient and clearly very knowledgeable. She spent 2 hours making sure we had the best possible boot. I can’t thank her and the team enough."

Andrew S.

Verified Buyer

"Now, I'm a snowboarder and you’re mainly about that two plank ski-life. We don't mix a lot, but I was welcomed with warm arms with my one-plank, and your staff were extremely helpful. I want to applaud your team for one of my best customer service experiences of my life. Thank you."

Duncan S.

Verified Buyer

"Spent a lot of time here this week! Took my daughter in to buy new boots and they refitted her existing boots for $100 instead. Ended up spending my savings on a new set of skis and getting my boots refitted as well. Great advice, smart team, know their stuff."