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2018

Fuel EX 8 27.5 Plus

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$3,449.99 Model 21789
Fuel EX 8 Plus is a versatile full suspension trail bike with girthy plus-sized tires for unrelenting traction. It's the perfect balance of value and performance, with a trail-tough Alpha Platinum Aluminum frame, 140mm front and 130mm rear suspension, and a wide range SRAM GX Eagle 1x12 drivetrain.
Fuel EX 8 Plus is a versatile full suspension trail bike with girthy plus-sized tires for unrelenting traction. It's the perfect balance of value and performance, with a trail-tough Alpha Platinum Aluminum frame, 140mm front and 130mm rear suspension, and a wide range SRAM GX Eagle 1x12 drivetrain.
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It's right for you if...

You appreciate a little extra confidence on the trail. You value traction and stability, and want a stable rig that rips it up and keeps the rubber side down.

The tech you get

A lightweight alloy frame, a stout 140mm FOX fork, and 130mm of rear travel with a Trek's exclusive RE:aktiv rear shock. Plus, a Bontrager Drop Line dropper post, SUNringlé Duroc wheels wrapped in mid-fat Schwalbe Nobby Nic Performance 27.5x2.8˝tires, tubless rim tape and valves, and a SRAM GX Eagle 1x12 drivetrain for incredible gear range.

The final word

Amazing traction and confidence on the trail. A lightweight alloy frame, SUNringlé wheels with grippy mid-fat tires, and a plush suspension setup come together for a trail bike that boosts your confidence and your abilities.

favorite_borderWhy you'll love it

  1. Unrelenting confidence: this bike lets you ride sections you never thought you'd be able to clean
  2. Mid-fat tires give you the traction to scamper up technical climbs and charge through rock gardens
  3. The SRAM GX Eagle 12-speed drivetrain provides all the range you'll ever need in the simplicity of a 1x setup
  4. Straight Shot stiffness, Knock Block frame defense

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Features

Specifications

  • Frameset

    Frame
    Alpha Platinum Aluminum, ABP, Boost148, Knock Block steerer stop, Full Floater, EVO link, E2 tapered head tube, Mino Link, Control Freak internal routing, down tube guard, PF92, ISCG 05, G2 Geometry, 130mm travel
    Front suspension
    Fox Rhythm 34 Float, GRIP adjustable damper, E2 tapered steerer, G2 Geometry w/51mm offset, Boost110, 140mm travel
    Rear suspension
    Fox Performance Float EVOL, RE:aktiv 3-position damper, tuned by Trek Suspension Lab, 210x52.5mm
  • Wheels

    Front hub
    Bontrager sealed bearing, alloy axle, Boost110
    Rear hub
    Bontrager sealed bearing alloy axle, Boost148
    Rims
    SUNringlé Duroc 40 SL 28-hole, tubeless strips and valves included
    Tires
    Schwalbe Nobby Nic Performance w/Addix compound, Tubeless Ready, 27.5x2.80˝
  • Drivetrain

    Shifters
    SRAM GX Eagle, 12 speed
    Rear derailleur
    SRAM GX Eagle, Roller Bearing Clutch
    Crank
    SRAM Descendant 6k Eagle, 32T Direct Mount X-Sync
    Bottom bracket
    PF92
    Cassette
    SRAM XG-1275, 10-50, 12 speed
    Chain
    SRAM GX Eagle
    Pedals
    Not included
  • Components

    Saddle
    Bontrager Evoke 2, chromoly rails
    Seatpost
    Bontrager Drop Line, internal routing, 31.6mm (15.5: 100mm / 17.5 & 18.5: 125mm / 19.5 & 21.5: 150mm)
    Handlebar
    Bontrager Line, 35mm, 15mm rise, 750mm width
    Grips
    Bontrager Race Lite, lock-on
    Stem
    Bontrager Line, Knock Block, 35mm clamp, 0 degree, 60mm length
    Headset
    Knock Block Integrated, sealed cartridge bearing, 1-1/8˝ top, 1.5˝ bottom
    Brakeset
    SRAM Guide R hydraulic disc
  • Weight

    Weight
    17.5" - 14.51 kg / 32.00 lbs (with tubes)
    Weight limit
    This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg).
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 off Trek pre-production painted frames at time of publication. Weights may vary in final production.

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

All measurements provided in cm unless otherwise noted.

Frame size number 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 in High 27.5" 39.4 65.7° 74.2 ° 10.0 67.2° 54.5 33.4 2.6 43.3 5.1 9.6 112.5 75.9 39.4 60.7
17.5 in High 27.5" 41.9 65.7° 74.2 ° 10.0 67.2° 58.0 33.4 2.6 43.3 5.1 9.6 116.0 73.9 42.8 60.7
18.5 in High 27.5" 44.0 65.7° 74.2 ° 10.0 67.2° 59.7 33.4 2.6 43.3 5.1 9.6 117.7 73.4 44.5 60.7
19.5 in High 27.5" 47.0 65.7° 74.2 ° 10.0 67.2° 61.2 33.4 2.6 43.3 5.1 9.6 119.2 72.9 46.0 60.7
21.5 in High 27.5" 51.0 65.7° 74.2 ° 11.0 67.2° 63.9 33.4 2.6 43.3 5.1 9.6 121.8 73.9 48.2 61.6
23 in High 27.5" 56.0 65.7° 74.2° 14.5 67.2° 67.3 33.4 2.6 43.3 5.1 9.6 125.1 77.9 50.2 64.8

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