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It's right for you if...

You want one carbon trail bike that can take on every adventure, from flowy singletrack to the gnarliest descents and most brutal climbs. You don't mind sacrificing a little on the parts so you can get the best frame right now.

The tech you get

A lightweight and stiff full OCLV Mountain Carbon frame with internal storage, a 140 mm FOX Rhythm 36 fork, 130 mm of rear travel with a FOX Float Performance rear shock with Trek's efficient RE:aktiv damper, a wide-range 1x12 SRAM NX/GX Eagle drive train, a Bontrager Line dropper post and powerful Shimano 4-piston hydraulic disc brakes.

The final word

Full suspension control on a lightweight and trail-tough carbon frame makes for a fun and fast ride. It's rugged enough for rowdy descents, but still spry for lively climbing and accelerating.

See it in action

favorite_borderWhy you'll love it

  1. Don't confuse the Fuel EX 9.7 with other value carbon models on the market – this bike provides an outstanding frame and suspension, with a workhorse drivetrain and wheels
  2. A sleek internal storage compartment gives you a handy spot to stow flat fixing supplies or gear
  3. Bigger, stiffer 36 mm fork stanchions won't flex, so you can push harder with more precise, confident steering that helps you stay on your line
  4. RE:aktiv is smarter, more efficient suspension. It gives you firm pedalling support that instantly gives way over bumps
  5. We expanded our size range to ensure a better fit for all riders. And, you get the fastest wheel that fits your frame: XS frames get 27.5˝ wheels, S frames get to choose between 27.5˝ or 29˝ and sizes M to XL get 29˝ wheels


Features

Will my bike have a curved top tube?

Will my bike have a curved top tube?

Smaller frames (XS and 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

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.

Learn more

Straight Shot w/Knock Block

Trek's Straight Shot frame design optimises the stiffness-to-weight ratio for a more responsive ride. You'll be able to push harder and stay more planted on your line when the going gets rough.

Learn more

Specifications

*spec applies to all sizes unless otherwise noted

Frameset
Frame OCLV Mountain Carbon main frame and stays, internal storage, tapered head tube, Knock Block, Control Freak internal routing, Carbon Armour, ISCG 05, magnesium rocker link, Mino Link, ABP, Boost148, 130 mm travel
Fork Fox Rhythm 36, Float EVOL air spring, GRIP damper, tapered steerer, 44 mm offset, Boost110, 15 mm Kabolt axle, 140 mm travel
*Shock Size: S
Fox Performance Float EVOL, RE:aktiv 3-position damper, tuned by Trek Suspension Lab, 210x52.5 mm
Size: S , M , ML , L , XL
Fox Performance Float EVOL, RE:aktiv 3-position damper, tuned by Trek Suspension Lab, 210x55 mm
Wheels
Wheel front Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15 mm thru axle
Wheel rear Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Shimano 8/9/10 freehub, Boost148, 12 mm thru axle
Skewer rear Bontrager Switch thru axle
*Tyre Size: S
Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 27.5x2.40"
Size: S
Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 27.5x2.60"
Size: S , M , ML , L , XL
Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120 tpi, 29x2.40"
Size: S , M , ML , L , XL
Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 29x2.60"
Tyre part Bontrager TLR valve, 50 mm
Drivetrain
Shifter SRAM NX Eagle, 12-speed
Rear derailleur SRAM GX Eagle
*Crank Size: S
SRAM X1 Eagle, DUB, 30T steel ring, Boost, 170 mm length
Size: M , ML , L , XL
SRAM X1 Eagle, DUB, 30T steel ring, Boost, 175 mm length
Bottom bracket SRAM DUB, 92 mm, PressFit
Cassette SRAM PG-1230 Eagle, 11-50, 12-speed
Chain SRAM NX Eagle, 12-speed
Components
Saddle Bontrager Arvada, hollow chromoly rails, 138 mm width
*Seatpost Size: S
Bontrager Line Dropper, 100 mm travel, internal routing, 31.6 mm, 345 mm length
Size: M , ML , L , XL
Bontrager Line Dropper, 150mm travel, internal routing, 31.6 mm, 440mm length
Handlebar Bontrager Line, alloy, 35 mm, 27.5 mm rise, 780 mm width
*Stem Size: S
Bontrager Line, 35 mm, Knock Block, 0-degree, 40 mm length
Size: M , ML , L , XL
Bontrager Line, 35 mm, Knock Block, 0-degree, 50 mm length
Head set Knock Block Integrated, 58-degree radius, cartridge bearing, 1-1/8" top, 1.5" bottom
*Brake Size: S , M , ML , L , XL
Shimano 4-piston hydraulic disc, MT4100 lever, MT420 calliper
Size: M , ML , L , XL
Shimano hydraulic disc, MT4100 lever, MT420 4-piston calliper
Brake rotor Shimano RT66, 6-bolt, 180mm
Weight
Weight M - 13.69 kg / 30.19 lbs (with TLR sealant, no tubes)
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, and materials.
Bike and frame weights are based on Trek pre-production painted frames at the time of publication. Weights may vary in final production

Sizing & fit

Proper bike fit is essential for best performance and comfort. Any size and geometry measurements shown on trekbikes.com are for general comparison purposes only. To find your perfect fit, visit an authorised Trek retailer, where an expert skilled at sizing will help you find the appropriate bike and size for your individual needs.

 

Rider Height

Inseam

All measurements provided in cm unless otherwise stated.

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
14.0 XS Low 27.5" 35.6 69.0° 75.0° 9.0 66.0° 54.6 33.5 2.1 43.7 4.3 11.1 112.0 69.5 39.5 56.3
14.0 XS High 27.5" 35.5 69.5° 75.5° 9.0 66.5° 54.5 34.1 1.4 43.6 4.3 10.6 111.9 70.0 40.0 55.9
15.5 S High 27.5" 39.5 69.5° 75.5° 10.0 66.5° 56.7 34.1 1.4 43.6 4.3 10.6 114.3 70.8 42.0 56.8
15.5 S Low 27.5" 39.5 69.0° 75.0° 10.0 66.0° 56.8 33.5 2.1 43.7 4.3 11.1 114.4 70.2 41.5 57.2
15.5 S High 29" 39.5 68.0° 75.5° 10.0 66.5° 57.7 34.6 2.8 43.6 4.3 11.5 115.3 70.8 42.0 60.5
15.5 S Low 29" 39.5 67.5° 75.0° 10.0 66.0° 57.8 34.0 3.4 43.7 4.3 11.9 115.4 70.2 41.5 60.9
17.5 M Low 29" 42.0 67.5° 75.0° 10.0 66.0° 60.3 34.0 3.4 43.7 4.3 11.9 117.9 74.1 44.0 60.9
17.5 M High 29" 42.0 68.0° 75.5° 10.0 66.5° 60.2 34.6 2.8 43.6 4.3 11.6 117.8 74.7 44.5 60.5
18.5 ML Low 29" 43.5 67.5° 75.0° 10.5 66.0° 61.9 34.0 3.4 43.7 4.3 11.9 119.6 74.6 45.5 61.3
18.5 ML High 29" 43.5 68.0° 75.5° 10.5 66.5° 61.8 34.6 2.8 43.6 4.3 11.6 119.5 75.2 46.0 60.9
19.5 L Low 29" 45.0 67.5° 75.0° 10.5 66.0° 63.4 34.0 3.4 43.7 4.3 11.9 121.1 74.8 47.0 61.3
19.5 L High 29" 45.0 68.0° 75.5° 10.5 66.5° 63.3 34.6 2.7 43.6 4.3 11.6 121.0 75.4 47.5 60.9
21.5 XL Low 29" 50.0 67.5° 75.0° 12.0 66.0° 66.3 34.0 3.4 43.7 4.3 11.9 124.2 77.0 49.5 62.7
21.5 XL High 29" 50.0 68.0° 75.5° 12.0 66.5° 66.2 34.6 2.7 43.6 4.3 11.6 124.1 77.6 50.0 62.3

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