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Today’s DealsTop Fuel 9
A 27.5″ / 29″ aluminum frame full suspension crosscountry bike with ultra high-end components.
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| Frame | Aluminum |
|---|---|
| Suspension | Full, 100 / 100mm |
| Wheels | 27.5″ / 29″ Aluminum |
| Drivetrain | 1 × 11 |
| Groupset | X1 |
| Brakes | Shimano XT Hydraulic Disc |
Summary
The Trek Top Fuel is a highly efficient cross-country bike praised for its climbing prowess, light weight, and responsive handling. Its updated geometry and suspension design offer a plush ride with superb small-bump compliance, making it a favorite for XC racing and marathon events. However, some riders note the front end can feel twitchy on descents, and the absence of a dropper post is a common critique.
Efficient climber with light weight carbon frame
Superb small-bump compliance and plush rear suspension
Adjustable geometry with Mino Link for versatile handling
Quick and efficient ride quality
High-quality components and build
Front end can feel twitchy on tough descents
Absence of a dropper post
Bontrager tires may lack grip on technical terrain
The small-bump compliance is superb for an XC rig. It feels like it has more than 100 millimeters of travel.
One of our favorite bikes, the gets a refresh and becomes more capable without (hopefully) losing any of its sharpness.Bicycling
Could it be the embodiment of our dream bike?
The carbon fiber Top Fuel ruled in mountain biking’s mid-2000s heyday, and now it’s back and better than ever.
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May 2017 · James Bracey
Swing a leg over the Trek Top Fuel 9 and the first thing you notice is the suspension is keen to get working. It’s a seriously rapid bike on the trails.
Rewarding ride provided by the Re:aktiv suspension.
SRAM X1 groupset performed flawlessly.
Handling is marred by the miniscule bar width.
Tyres are inappropriate for most British conditions.

May 2016 · Lennard Zinn
The carbon fiber Top Fuel ruled in mountain biking’s mid-2000s heyday, and now it’s back and better than ever. Most importantly, Trek has updated the

Mar 2016 · Christoph Bayer
Trek gave their Top Fuel a revamp for 2016. We've put the Trek Top Fuel 9.8 SL through its paces to see if the performance can match the looks.

Mar 2016
Who wouldn’t have expected the updated Trek Top Fuel’s shining point to be climbing? Its predecessor was a World Cup-winning XC race bike and the Top Fuel has now replaced the company’s other race bike, the Superfly. With larger wheels, improved suspension and other updates, the Top Fuel is poised to carry on Trek’s XC race heritage.

Feb 2016
The Trek Top Fuel 9.8 SL is a Greyhound designed to cover long distances fast and is tailor-made for über-fit marathon racers.

Sep 2015 · Gloria Liu
The reincarnated version of this World Cup-winning XC racer gets modern updates and a hella-fast ride
Jul 2015 · Jeroen Tiggelman
Turning its focus on its cross-country racing bikes, Trek made some significant changes to its XC line. Most notable is the introduction of the Isospeed coupler in to the Procaliber hardtail line. - Mtbr.com

Jun 2015 · Josh Patterson
For 2016, the Top Fuel returns to Trek’s line as a thoroughly modern cross-country racer, incorporating a lightweight carbon frame, wider axle spacing, adjustable geometry and Trek’s size-specific wheelsize strategy. . .
| Frame | Alpha Platinum Aluminum, ABP, Full Floater, EVO link, E2 tapered head tube, Mino Link, MicroTruss, internal derailleur and dropper post routing, down tube guard, PF92, ISCG 05, Boost148 & G2 Geometry on 29ers, 100mm travel BB Standard: BB86/BB92, Press Fit |
|---|---|
| Bottom Bracket | BB86/BB92, press-fit |
| Headset | FSA IS-2 carbon, E2, sealed alloy cartridge |
| Stem | Bontrager Race X Lite, 31.8mm, 7 degree |
| Handlebar | Bontrager Race Lite, 31.8mm, 5mm rise |
| Saddle | Bontrager Montrose Elite, hollow titanium rails |
| Seatpost | Bontrager Rhythm Elite, 2-bolt head, 31.6mm, zero offset Type: Rigid |
| Rear Derailleur | SRAM X1, Type 2 |
|---|---|
| Crank | SRAM X1 1000, 32T X-Sync |
| Shifters | SRAM X1, 11 speed |
| Cassette | SRAM XG-1150, 10-42, 11 speed |
| Brakes | Shimano Deore XT hydraulic disc Type: Shimano XT Hydraulic Disc |
| Rims | Bontrager Mustang Pro Tubeless Ready, 15mm front, 12mm rear (Boost110 & Boost148 on 29ers) |
|---|---|
| Tires | Bontrager XR1 Team Issue, Tubeless Ready, 120tpi, aramid bead, 29x2.00" (Bontrager XR2 Team Issue, Tubeless Ready, 120tpi, aramid bead, 27.5x2.20") |
First added June 29
Last updated June 29
Not listed for 3,256 days