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  • Top Fuel 9 Gen 4
Top Fuel 9 Gen 4
Top Fuel 9 Gen 4
Top Fuel 9 Gen 4
Top Fuel 9 Gen 4
Top Fuel 9 Gen 4
Top Fuel 9 Gen 4

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NEW

Top Fuel 9 Gen 4

Model 5319343
$4,799.99 Comp. Value Sale price

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.

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Pricing details

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Comp. Value

Manufacturer’s Suggested Retail Price. This is the price you’ll pay ordering directly from Trek. Total price including shipping and taxes may be seen in the cart.

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Overview

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.

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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 the sweetest alloy build with a fully wireless SRAM transmission, upgraded suspension, and a light yet rugged frame for all-mountain ripping
  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
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"More capable & adaptable than ever"

"The Top Fuel manages to feel quick and efficient without any harshness, a feat that's not easy to accomplish."

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"increased versatility and broader appeal"

"The added ability to futz with not just head/seat angle and bb height, but also play with shock progression AND maybe even long-stroke the bike for more travel is appealing."

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"enthusiastic and sporty, offering up impressive pedal efficiency with loads of grip."

"Mind you, it only took a few pedal strokes to appreciate the Top Fuel’s efficient and responsive demeanour.[...]Heading across rockier singletrack, the new bike is noticeably sprightlier and springier than its predecessor."

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"Dear lord, this bike is a hoot"

"I keep finding myself on top of bigger moves than Trek would probably recommend for the Top Fuel, and I keep bouncing out the bottom more in love with the bike."

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"light, lively, and efficient"

"...the Top Fuel stands out for being just a touch more composed and forgiving (in terms of its suspension performance) than most of the bikes that it compares most directly to on paper."

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Service manual

Time to bust out the repair stand for some maintenance? Find a detailed breakdown of your bike with part numbers, torque values, and platform-specific tech instructions below.

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Which Generation?

Save some cash on the light and fast Top Fuel Gen 3, or go even lighter with more adjustability with Top Fuel Gen 4

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