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It's right for you if...
You’re looking for a do-it-all full suspension mountain bike that's efficient and fast yet capable of hitting some bigger stuff. You want the performance boost of a carbon frame, and you plan to put this bike through its paces on every style of trail, from flowy to techy.
The tech you get
A light and stiff full carbon frame, 120mm RockShox Reba RL fork, 115mm of rear travel with a FOX Performance Float shock, and a 1x12 SRAM NX Eagle drivetrain. Plus, Bontrager DropLock dual remote suspension lockout, a Bontrager Line Dropper, and Tubeless Ready Bontrager Kovee Comp 23 wheels.
The final word
Top Fuel 9.7 is an efficient and capable down country bike that's at home on technical trails and XC courses. What sets this model apart is the lightweight carbon frame and solid parts spec that make for great performance at a great value.
The Walkthrough
favorite_borderWhy you'll love it
- The full carbon frame gives you a light, responsive ride
- This short-travel bike has a killer suspension setup reminiscent of the all-mighty mullet—it's both efficient and ready to party
- Bontrager DropLock's shifter-style lever lets you easily lock out both front and rear shocks at the same time for added sprinting or climbing efficiently. Plus, it controls your dropper post too
- Mino Link lets you make small adjustments to your geometry quickly and easily, even mid-ride
- You get a Straight Shot downtube for extra-stiff, responsive handling without added weight, and a Knock Block headset that protects against spinning bars and fork crowns
"Racing blood, trail spirit"
"It's devilishly quick, accelerates in a way that makes it seem like my legs actually produce real power. It's stable, planted, and it tracks like it's supposed to. Endurance athletes will be able to remain seated over more terrain, saving precious energy over the long haul, while XC pinners will hook up better on steep technical climbs."
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"Super light and fast as hell"
"The new Top Fuel might not be a pure XC-race bike anymore, but it's still precise and very fast. Its new trail orientation makes it a great choice for a rider who wants a fast and light bike with most of the the efficiency of a cross-country race bike, but with bit more versatility and playfulness."
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"A little more travel, a lot more aggressive"
"Top Fuel is damn efficient heading up, but when you hit a downhill the bike rides much more like a lightweight trail bike than a purebred XC race machine, and has no hesitation getting a little rowdy if you're willing to let it."
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"From XC whippet to all-round shredder"
"Smash down on the cranks and it leaps forward like a bullet from a gun, both uphill and downhill. if you enjoy the simple pleasure of crushing climbs and making the most of every descent, the Trek Top Fuel is your passport to a world of fun."
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Features
Will my bike have a curved top tube?
Smaller frames (S) have a top tube that dips down as it approaches the seat tube. This design makes for a lower standover height, which is good for shorter riders because it allows them to straddle their bike more easily. Larger frames (M and up) have a straight top tube because taller riders with longer legs typically don’t have the same issues with standover height.
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.
Straight Shot downtube
Straight Shot downtube gives you an extra-stiff frame without adding any weight, so you can stick your line through the rough stuff and still fly up the next climb.
Knock Block has your frame's back when things go wrong. It prevents your handlebars from spinning all the way around in a crash, so your hoses won't get yanked, and your controls won't hit the top tube.
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Suspension Calculator
This suspension calculator will help you optimize your suspension settings for your riding weight. Simply follow the steps to find your best set up.
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Complete Tubeless System
Tubeless Ready rims and tires make it easy to ditch the tubes so you get better traction, fewer flats, and less weight. You're ready to roll right out of the box with the included TLR rim strips, valves, and sealant.
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Mino Link adjustable geometry
Fine tune head tube angle by 1/2° and BB height by up to 10mm with the simple turn of a nut. Just flip the link to choose between slack or slacker geometry, without negatively affecting suspension performance. A Trek exclusive.
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Bontrager DropLock Lever
One easy-to-use lever locks out your suspension and controls your dropper post with no unnecessary handlebar clutter.
Control Freak Cable Management
The lightest, quietest, most versatile cable management system allows any combination of shift, brake, lockout, and dropper post lines to be routed through the frame for clean looks and the ultimate custom setup.
Specifications
*spec applies to all sizes unless otherwise noted
| Fork | RockShox Reba RL, Solo Air spring, Motion Control damper, dual remote lockout, tapered steerer, 46mm offset, Boost110, 15mm Maxle Stealth, 120mm travel |
|---|---|
| Shock | Fox Performance Float, 2-position DPS damper, Bontrager DropLock remote, 190x45mm |
| Suspension lever | SRAM TwistLoc dual remote |
| Max compatible fork travel | 130mm |
| Wheel front | Bontrager Kovee Comp 23, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle |
|---|---|
| Wheel rear | Bontrager Kovee Comp 23, Tubeless Ready, 6-bolt, Shimano 10 freehub, Boost148, 12mm thru axle |
| Hub front | Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15mm thru axle |
| Skewer rear | Bontrager Switch thru axle, removable lever |
| Rim | Bontrager Kovee, double-wall, Tubeless Ready, 28-hole, 23mm width, presta valve |
| Tire | Bontrager XR3 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120tpi, 29x2.40'' |
| Tire part | Bontrager TLR valve, 40mm |
| Rim strip | Bontrager TLR |
| Max tire size | 29x2.40" |
| Shifter | SRAM NX Eagle, 12 speed |
|---|---|
| Rear derailleur | SRAM NX Eagle |
| *Crank |
Size:
S SRAM NX Eagle, DUB, 32T steel ring, Boost (52mm chainline), 170mm length |
|
Size:
M, M/L, L, XL SRAM NX Eagle, DUB, 32T steel ring, Boost (52mm chainline), 175mm length |
|
| Bottom bracket | SRAM DUB, 92mm, PressFit |
| Cassette | SRAM PG-1230 Eagle, 11-50, 12 speed |
| Chain | SRAM NX Eagle, 12 speed |
| Max chainring size | 36T |
| Saddle | Bontrager Montrose Comp, steel rails, 138mm width |
|---|---|
| *Seatpost |
Size:
S Bontrager Line Dropper, 100mm travel, internal routing, 31.6mm, 345mm length |
|
Size:
M, M/L, L, XL Bontrager Line Dropper, 150mm travel, internal routing, 31.6mm, 440mm length |
|
| Handlebar | Bontrager Comp, alloy, 31.8mm, 15mm rise, 750mm width |
| *Stem |
Size:
S, M, M/L Bontrager Rhythm Comp, 31.8mm, Knock Block, 0 degree, 60mm length |
|
Size:
L, XL Bontrager Rhythm Comp, 31.8mm, Knock Block, 0 degree, 70mm length |
|
| Headset | Knock Block Integrated, 58-degree radius, cartridge bearing, 1-1/8'' top, 1.5'' bottom |
| Brake | Shimano hydraulic disc, MT501 lever, MT500 caliper |
| *Brake rotor |
Size:
S, M, M/L, L, XL Shimano RT56, 180mm, 6-bolt |
|
Size:
S, M, M/L, L, XL Shimano RT56, 160mm, 6-bolt |
| Weight | M - 12.65 kg / 27.89 lbs (with TLR sealant, no tubes) |
|---|---|
| Weight limit | This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg). |
Sizing & fit
The charts below show our recommended sizes based on height, but there are some other factors, like arm and leg length, that determine a great fit. That’s why you’ll see some overlap in our recommendations. Not every rider who’s 5´8˝, for example, will fit on the same size bike. The best way to find your perfect fit is to consult the experts at your local Trek retailer.
Rider Height
Inseam
S
153.0 - 166.5 cm
5'0.2" - 5'5.6"
72.0 - 79.0 cm
28.3" - 31.1"
M
161.0 - 172.0 cm
5'3.4" - 5'7.7"
76.0 - 81.0 cm
29.9" - 31.9"
M/L
165.5 - 179.0 cm
5'5.2" - 5'10.5"
77.0 - 84.0 cm
30.3" - 33.1"
L
177.0 - 188.0 cm
5'9.7" - 6'2.0"
83.0 - 88.0 cm
32.7" - 34.6"
XL
186.0 - 196.0 cm
6'1.2" - 6'5.2"
87.0 - 92.0 cm
34.3" - 36.2"
All measurements provided in cm unless otherwise noted.
| Frame size number | Frame size letter | Geometry position | Wheel size | A — Seat tube | B — Seat tube angle | Effective seat tube angle | C — Head tube length | D — Head angle | E — Effective top tube | F — Bottom bracket height | G — Bottom bracket drop | H — Chainstay length | I — Offset | J — Trail | K — Wheelbase | L — Standover | M — Frame reach | N — Frame stack |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 15.5 | S | High | 29" | 39.4 | 68.5° | 75.5° | 9.0 | 68.0° | 56.3 | 34.3 | 3.0 | 43.4 | 4.4 | 10.3 | 111.7 | 73.1 | 41.0 | 59.0 |
| 15.5 | S | Low | 29" | 39.4 | 68.0° | 75.0° | 9.0 | 67.5° | 56.4 | 33.7 | 3.6 | 43.5 | 4.4 | 10.7 | 111.7 | 72.5 | 40.5 | 59.4 |
| 17.5 | M | Low | 29" | 41.9 | 68.0° | 75.0° | 9.0 | 67.5° | 59.9 | 33.7 | 3.6 | 43.5 | 4.4 | 10.7 | 115.2 | 73.0 | 44.0 | 59.4 |
| 17.5 | M | High | 29" | 41.9 | 68.5° | 75.5° | 9.0 | 68.0° | 59.8 | 34.3 | 3.0 | 43.4 | 4.4 | 10.3 | 115.2 | 73.6 | 44.5 | 59.0 |
| 18.5 | ML | High | 29" | 44.5 | 68.5° | 75.5° | 9.0 | 68.0° | 61.4 | 34.3 | 3.0 | 43.4 | 4.4 | 10.3 | 116.8 | 74.1 | 46.1 | 59.0 |
| 18.5 | ML | Low | 29" | 44.5 | 68.0° | 75.0° | 9.0 | 67.5° | 61.5 | 33.7 | 3.6 | 43.5 | 4.4 | 10.7 | 116.8 | 73.5 | 45.6 | 59.4 |
| 19.5 | L | High | 29" | 47.0 | 68.5° | 75.5° | 10.0 | 68.0° | 63.0 | 34.3 | 2.9 | 43.4 | 4.4 | 10.3 | 118.5 | 75.1 | 47.5 | 59.9 |
| 19.5 | L | Low | 29" | 47.0 | 68.0° | 75.0° | 10.0 | 67.5° | 63.2 | 33.7 | 3.6 | 43.5 | 4.4 | 10.7 | 118.6 | 74.5 | 47.0 | 60.3 |
| 21.5 | XL | High | 29" | 52.1 | 68.5° | 75.5° | 11.0 | 68.0° | 65.0 | 34.3 | 2.9 | 43.4 | 4.4 | 10.3 | 120.6 | 77.1 | 49.2 | 60.8 |
| 21.5 | XL | Low | 29" | 52.1 | 68.0° | 75.0° | 11.0 | 67.5° | 65.1 | 33.7 | 3.6 | 43.5 | 4.4 | 10.7 | 120.7 | 76.5 | 48.7 | 61.2 |
| 23 | XXL | High | 29" | 57.0 | 68.5° | 75.5° | 12.0 | 68.0° | 67.5 | 34.3 | 2.9 | 43.4 | 4.4 | 10.3 | 123.3 | 78.6 | 51.5 | 61.7 |
| 23 | XXL | Low | 29" | 57.0 | 68.0° | 75.0° | 12.0 | 67.5° | 67.7 | 33.7 | 3.6 | 43.5 | 4.4 | 10.7 | 123.4 | 78.0 | 51.0 | 62.2 |