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Trek Fuel EX 8

Trek Fuel EX 8
  • Color: Alpine Blue/Deep Dark Blue
$3,929.99
Color:
Alpine Blue/Deep Dark Blue
Please select options

Details

Fuel EX 8 is the ideal trail bike for riders who want a versatile full suspension ripper that makes soul-crushing climbs less painful, but can also huck rowdy trails. It hits the sweet spot of value and performance in our mountain bike lineup by combining high-end parts with a stout but light alloy frame.

It's right for you if...
You're cool with your wheels leaving the ground, but you also like to go the distance on marathon singletrack sessions. You want a bike that lets you crush any trail, and your priority is on the parts.

The tech you get
An alloy frame, 140mm FOX Rhythm 34 fork, and 130mm of rear travel with an extra-efficient RE:aktiv damper. A Shimano XT 1x12 drivetrain with an extra-low 51-tooth climbing gear, powerful 4-piston brakes, Bontrager wheels with a 54-tooth Rapid Drive hub for fast engagement plus a Bontrager Line dropper post.

The final word
Fuel EX 8 gives you added efficiency with Shimano's latest, widest-range drivetrain and Trek's unique RE:aktiv damper that provides firm pedaling support without giving up any plush compliance.

Why you'll love it
- A wider gear range and more efficient suspension help you claw your way up tricky climbs you never thought you'd clean
- If you measure quality in performance per dollar, you won't do better than Fuel EX 8
- This bike will make you want to rail every corner, smash every rock garden, and charge every descent
- The shifter-style, underbar remote dropper post lever is super intuitive and easy to use
- 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

Wheel size:
- Sizes X-Small – Small: 27.5-inch
- Sizes Small – XX-Large: 29-inch

Geometry

Sizes:
Low Setting
All measurements provided in cm unless otherwise noted.
Frame size number1415.517.518.519.521.523
Frame size letter X-Small Small Medium Medium/Large Large X-Large XX-Large
Geometry position Low Low Low Low Low Low Low
Wheel size 27.5" 27.5" 29" 29" 29" 29" 29"
A- Seat tube 35.6 39.5 42 43.5 45 50 54
B- Seat tube angle 69.0° 69.0° 67.5° 67.5° 67.5° 67.5° 67.5°
Effective seat tube angle 75.0° 75.0° 75.0° 75.0° 75.0° 75.0° 75.0°
C- Head tube length 9 10 10 10.5 10.5 12 14
D- Head angle 66.0° 66.0° 66.0° 66.0° 66.0° 66.0° 66.0°
E- Effective top tube 54.6 56.8 60.3 61.9 63.4 66.3 68.8
F- Bottom bracket height 33.5 33.5 34 34 34 34 34
G- Bottom bracket drop 2.1 2.1 3.4 3.4 3.4 3.4 3.4
H- Chainstay length 43.7 43.7 43.7 43.7 43.7 43.7 43.7
I- Offset 4.3 4.3 4.3 4.3 4.3 4.3 4.3
J- Trail 11.1 11.1 11.9 11.9 11.9 11.9 11.9
K- Wheelbase 112 114.4 117.9 119.6 121.1 124.2 127
L- Standover 69.5 70 74.2 74.5 75 76.2 80
M- Frame reach 39.5 41.5 44 45.5 47 49.5 51.5
N- Frame stack 56.3 57.2 60.9 61.3 61.3 62.7 64.5

Sizes:
High Setting
All measurements provided in cm unless otherwise noted.
Frame size number1415.517.518.519.521.523
Frame size letter X-Small Small Medium Medium/Large Large X-Large XX-Large
Geometry position High High High High High High High
Wheel size 27.5" 27.5" 29" 29" 29" 29" 29"
A- Seat tube 35.5 39.5 42 43.5 45 50 54
B- Seat tube angle 69.5° 69.5° 68.0° 68.0° 68.0° 68.0° 68.0°
Effective seat tube angle 75.5° 75.5° 75.5° 75.5° 75.5° 75.5° 75.5°
C- Head tube length 9 10 10 10.5 10.5 12 14
D- Head angle 66.5° 66.5° 66.5° 66.5° 66.5° 66.5° 66.5°
E- Effective top tube 54.5 56.7 60.2 61.8 63.3 66.2 68.7
F- Bottom bracket height 34.1 34.1 34.6 34.6 34.6 34.6 34.6
G- Bottom bracket drop 1.4 1.4 2.8 2.8 2.7 2.7 2.7
H- Chainstay length 43.6 43.6 43.6 43.6 43.6 43.6 43.6
I- Offset 4.3 4.3 4.3 4.3 4.3 4.3 4.3
J- Trail 10.6 10.6 11.6 11.6 11.6 11.6 11.6
K- Wheelbase 111.9 114.3 117.8 119.5 121 124.1 126.9
L- Standover 70 70.7 74.8 75.1 75.6 76.8 80.6
M- Frame reach 40 42 44.5 46 47.5 50 52
N- Frame stack 55.9 56.8 60.5 60.9 60.9 62.3 64.1

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.

Specs

Frame Alpha Platinum Aluminum, tapered head tube, Knock Block, Control Freak internal routing, downtube guard, ISCG 05, magnesium rocker link, Mino Link, ABP, Boost148, 130mm travel
Fork Fox Rhythm 34, Float EVOL air spring, GRIP damper, tapered steerer, 44mm offset, Boost110, 15mm Kabolt axle, 140mm travel
Rear Shock Fox Performance Float EVOL, 3-position RE:aktiv damper, tuned by Trek Suspension Lab
XS, S: 210mm x 52.5mm
S – XXL: 210mm x 55mm
Wheels Front: Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle
Rear: Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 54, 6-bolt, Shimano MicroSpline freehub, Boost148, 12mm thru-axle
Hubs Front: Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15mm thru axle
Rear: Size: XS, S, M, ML, L, XL, XXL Bontrager alloy, sealed bearing, alloy, 6-bolt, Rapid Drive 108, Shimano MicroSpline freehub, Boost148, 12mm thru-axle
Size: XS, S, M, ML, L, XL, XXL Bontrager alloy, sealed bearing, 6-bolt, Shimano MicroSpline freehub, Boost148, 12mm thru-axle
Tires Bontrager XR5 Team Issue, Tubeless Ready, aramid bead, 120 tpi
Size XS-S: 27.5x2.50"
Size S-XXL: 29x2.50"
Bottom Bracket Shimano MT500, 92mm, PressFit
Crankset Size: XS, S, M, ML, L Shimano SLX M7100, 30T alloy ring, Boost (52mm chainline), 170mm length
Size: XL, XXL Shimano SLX M7100, 30T alloy ring, Boost (52mm chainline), 175mm length
Shifters Shimano XT M8100, 12 speed
Rear Derailleur Shimano XT M8100, long cage, 51T max cog
Cassette/Freewheel Shimano XT M8100, 10-51T, 12 speed
Chain Shimano SLX M7100, 12 speed
Brakes Size: XS, S, M, ML, L, XL, XXL Shimano hydraulic disc, MT4100 lever, MT420 4-piston caliper
Size: XS, S, M, ML, L, XL, XXL Shimano 4-piston hydraulic disc, MT4100 lever, MT420 caliper
Rotors Size: XS, S, M, ML, L, XL, XXL Shimano RT66, 6-bolt, 180mm
Size: M, ML, L, XL, XXL Shimano RT66, 6-bolt, 203mm
Handlebars Size: XS, S Bontrager Line, alloy, 35mm, 27.5mm rise, 750mm width
Size: M, ML, L, XL, XXL Bontrager Line, alloy, 35mm, 27.5mm rise, 780mm width
Tape/Grips Bontrager XR Trail Elite, nylon lock-on
Stem Size: XS, S Bontrager Elite, 35mm, 0 degree, 35mm length
Size: M, ML, L, XL, XXL Bontrager Elite, 35mm, 0 degree, 45mm length
Headset Knock Block Integrated, 58-degree radius, cartridge bearing, 1-1/8" top, 1.5" bottom
Seatpost Size: XS, S Bontrager Line Dropper, 100mm travel, internal routing, 31.6mm, 345mm length
Size: M, ML, L, XL, XXL Bontrager Line Dropper, 150mm travel, internal routing, 31.6mm, 440mm length
Saddle Bontrager Arvada, hollow chromoly rails, 138mm width
Pedals Sold separately

* Subject to change without notice.

Videos

Part Numbers

Option UPC MPN Store SKU
Alpine Blue/Deep Dark Blue / X-Small / 27.5-inch 601842582114 5259262 FUE36154672E
Alpine Blue/Deep Dark Blue / Small / 27.5-inch 601842582107 5259263 FUE35652238E
Alpine Blue/Deep Dark Blue / Small / 29-inch 601842582091 5259264 FUE34645805E
Alpine Blue/Deep Dark Blue / Medium / 29-inch 601842582084 5259265 FUE34668161E
Alpine Blue/Deep Dark Blue / Medium/Large / 29-inch 601842582077 5259266 FUE35639106E
Alpine Blue/Deep Dark Blue / Large / 29-inch 601842582060 5259267 FUE34664465E
Alpine Blue/Deep Dark Blue / X-Large / 29-inch 601842582053 5259268 FUE35354024E
Alpine Blue/Deep Dark Blue / XX-Large / 29-inch 601842582046 5259269 FUE36917369E

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