
Bikes up to 60% offWe monitor over 40,000 bikes daily to find the best prices
Today’s DealsTop Fuel 8
A 26″ aluminum frame full suspension crosscountry bike with upper mid-range components and shimano slx mechanical disc brakes.
Compare the full range
| Frame | Aluminum |
|---|---|
| Suspension | Full, 100 / 100mm |
| Wheels | 26″ Aluminum |
| Drivetrain | 3 × 9 |
| Groupset | SLX |
| Brakes | Shimano SLX Mechanical Disc |
5'0" – 5'7"
5'5" – 5'11"
5'9" – 6'3"
5'9" – 6'3"
6'1" – 6'6"
🐐 Estimated
None yet.
Do you have this bike? Help other riders make a decision about which size will work for them by sharing your own size and fit notes.
Summary
The Trek Top Fuel is a versatile cross-country bike that excels both as a race day steed and a trail bike, thanks to its superb suspension performance and high-tech carbon chassis. It offers a balanced riding position, tight climbing capabilities, and is capable of handling severe trail challenges. However, some riders may find it skittish at first, and certain components like the saddle and QR15 lower could be improved.
Works well as a race day steed or trail bike
Superb suspension performance
More balanced riding position
Tight when climbing
Capable enough for severe trail challenges
Can feel skittish at first
Slightly lardy Bontrager Race WSD saddle
QR15 lower could be stiffer and more secure
If you can’t stamp your authority on the pack with this walletful of featherweight carbon and high-end parts, then it’s time to hang up your SPDs and go back to training wheels.
It’s capable enough to guide you through some pretty severe trail challenges without abandonment, and when given its head, it simply loves to run.
Possibly not since the days of John Tomac in the early 1990’s have we been treated to the sight of a mountain bike with drop bars.
Feedback?
View all reviews

Mar 2011 · Matt Pacocha
Trek World Racing’s cross-country race rig
May 2010 · VeloNews.com
From climbing to cornering to accelerating, the Top Fuel 9.8 wants to race.

Apr 2010 · Jenn Hopkins
A top-shelf race bike with a top-dollar price tag, the Top Fuel 9.8 WSD is pretty much the ultimate in fast and light full bounce for the girls

Aug 2009 · Lennard Zinn
As we've already reported, several Trek-supported riders are on hand in the high country of central Colorado to keep the pace high as Lance Armstrong takes his second stab at the Leadville Trail 100 mountain bike race.

Nov 2008 · Tyler Benedict
Over the holiday week I met Trek’s Southeast demo guy, Tom Jenkins, at the IMBA Epic Santos Trails in Ocala, FL, for a solid 3+ hour cross country test of the new 2009 Trek Top Fuel 9.9 SSL. This course is an Epic for a reason.  There are more than 40 miles of singletrack, ranging …
| Frame | Alpha Red Aluminum w/ABP Race, Full Floater, magnesium EVO Link, oversized pivot bearings, replaceable derailleur hanger, 100mm travel |
|---|---|
| Headset | Cane Creek ZS-3 |
| Stem | Bontrager Race Lite, 7 degree |
| Handlebar | Bontrager Race, flat |
| Saddle | Bontrager Race |
| Seatpost | Bontrager Race Lite, 31.6mm, 5mm offset Type: Rigid |
| Pedals | Crank Brothers Custom Candy C |
| Rear Derailleur | Shimano SLX Shadow |
|---|---|
| Front Derailleur | Shimano SLX |
| Crank | Shimano SLX 44/32/22 |
| Shifters | Shimano SLX |
| Cassette | SRAM PG970 11-32, 9 speed |
| Brakes | Shimano SLX Type: Shimano SLX Mechanical Disc |
| Rims | Bontrager Race Lite Disc wheel system, centerlock, tubeless ready |
|---|---|
| Tires | Bontrager Jones XR, 26x2.25" front, 26x2.20" rear |
First added June 29
Last updated June 29
Not listed for 2,900 days