Trek Fuel EX 8 GX 2021
2021 Mountain
Estimate price |
3,899$
Weight | 13.78 kg 
Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Aluminum -
Wheels 27.5" / 29" -
Travel Front 140mm -
Travel Rear 130mm -
Fork Fox Rhythm Float 34
-
Groupset GX Eagle, X1 -
Suspension Full -
Drivetrain 1 × 12 -
Brakes Hydraulic Disc
Parts list
Components
Main components, grouped by system.
Bike components
Frame
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
Suspension Fork
Fox Rhythm 34, Float EVOL air spring, GRIP damper, tapered steerer, 44mm offset, Boost110, 15mm Kabolt axle, 140mm travel
Rear Shock
Size: XS, S, Fox Performance Float EVOL, 3-position RE:aktiv damper, tuned by Trek Suspension Lab, 210mm x 52.5mm; Size: S, M, ML, L, XL, XXL, Fox Performance Float EVOL, 3-position RE:aktiv damper, tuned by Trek Suspension Lab, 210mm x 55mm
Drivetrain
Rear Derailleur
SRAM GX Eagle
Shift Levers
SRAM GX Eagle, 12 speed
Cassette
SRAM Eagle XG-1275, 10-52, 12 speed
Crank
Size: XS, S, SRAM X1 Eagle, DUB, 30T steel ring, Boost (52mm chainline), 170mm length; Size: M, ML, L, XL, XXL, SRAM X1 Eagle, DUB, 30T steel ring, Boost (52mm chainline), 175mm length
Bottom Bracket
SRAM DUB, 92mm, PressFit
Chain
SRAM GX Eagle, 12 speed
Wheels
Front Hub
Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15mm thru axle
Rear Hub
Bontrager alloy, sealed bearing, 6-bolt, 108T Rapid Drive, SRAM XD driver, Boost148, 12mm thru axle
Rims
Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle
Spokes
DT Swiss Champion, J-Bend, Black
Tires
Size: XS, S, M, ML, L, XL, XXL, Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120tpi, 29.x2.40''; Size: XS, S, Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 27.5x2.60''; Size: S, M, ML, L, XL, XXL, Bontrager XR4 Team Issue, Tubeless Ready, Inner Strength sidewalls, aramid bead, 120 tpi, 29x2.60''
Brakes
Brakes
SRAM G2 R 4-piston hydraulic disc
Disk Rotors
Size: XS, S, M, ML, L, XL, XXL, SRAM CenterLine, 6-bolt, round edge, 180mm; Size: M, ML, L, XL, XXL, SRAM CenterLine, 6-bolt, round edge, 200mm
Cockpit
Stem
Size: XS, S, Bontrager Line, 35mm, Knock Block, 0 degree, 40mm length; Size: M, ML, L, XL, XXL, Bontrager Line, 35mm, Knock Block, 0 degree, 50mm length
Handlebar
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
Grips
Bontrager XR Trail Elite, nylon lock-on
Headset
Knock Block Integrated, 58-degree radius, cartridge bearing, 1-1/8'' top, 1.5'' bottom
Seat
Saddle
Bontrager Arvada, hollow chromoly rails, 138mm width
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
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | XS High | XS Low | SM High | SM Low | SM High | SM Low | MD High | MD Low | MD/LG High | MD/LG Low | LG High | LG Low | XL High | XL Low | XXL High | XXL Low |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Stack Reach Ratio | 1.39 mm | 1.42 mm | 1.35 mm | 1.37 mm | 1.43 mm | 1.46 mm | 1.35 mm | 1.38 mm | 1.32 mm | 1.34 mm | 1.28 mm | 1.3 mm | 1.24 mm | 1.26 mm | 1.23 mm | 1.25 mm |
| Bottom Bracket Height | 341 mm | 335 mm | 341 mm | 335 mm | 346 mm | 340 mm | 346 mm | 340 mm | 346 mm | 340 mm | 346 mm | 340 mm | 346 mm | 340 mm | 346 mm | 340 mm |
| Front Center | 683 mm | 684 mm | 707 mm | 708 mm | 718 mm | 719 mm | 743 mm | 744 mm | 760 mm | 761 mm | 775 mm | 776 mm | 806 mm | 807 mm | 834 mm | 835 mm |
| Rake | 42 mm | 43 mm | 42 mm | 43 mm | 43 mm | 43 mm | 43 mm | 43 mm | 43 mm | 43 mm | 43 mm | 43 mm | 43 mm | 43 mm | 43 mm | 43 mm |
| Trail | 106 mm | 111 mm | 106 mm | 111 mm | 115 mm | 119 mm | 116 mm | 119 mm | 116 mm | 119 mm | 116 mm | 119 mm | 116 mm | 119 mm | 116 mm | 119 mm |
| Stack | 565 mm | 569 mm | 574 mm | 578 mm | 611 mm | 615 mm | 611 mm | 615 mm | 615 mm | 619 mm | 615 mm | 619 mm | 629 mm | 633 mm | 647 mm | 651 mm |
| Reach | 406 mm | 401 mm | 426 mm | 421 mm | 426 mm | 421 mm | 451 mm | 446 mm | 466 mm | 461 mm | 481 mm | 476 mm | 506 mm | 501 mm | 526 mm | 521 mm |
| Top Tube Length | 551 mm | 552 mm | 573 mm | 574 mm | 583 mm | 584 mm | 608 mm | 609 mm | 624 mm | 625 mm | 639 mm | 640 mm | 668 mm | 669 mm | 693 mm | 694 mm |
| Seat Tube Angle | 75.5 ° | 75 ° | 75.5 ° | 75 ° | 75.5 ° | 75 ° | 75.5 ° | 75 ° | 75.5 ° | 75 ° | 75.5 ° | 75 ° | 75.5 ° | 75 ° | 75.5 ° | 75 ° |
| Seat Tube Length | 355 mm | 356 mm | 395 mm | 395 mm | 395 mm | 395 mm | 420 mm | 420 mm | 435 mm | 435 mm | 450 mm | 450 mm | 500 mm | 500 mm | 540 mm | 540 mm |
| Head Tube Angle | 66.5 ° | 66 ° | 66.5 ° | 66 ° | 66.5 ° | 66 ° | 66.5 ° | 66 ° | 66.5 ° | 66 ° | 66.5 ° | 66 ° | 66.5 ° | 66 ° | 66.5 ° | 66 ° |
| Head Tube Length | 90 mm | 90 mm | 100 mm | 100 mm | 100 mm | 100 mm | 100 mm | 100 mm | 105 mm | 105 mm | 105 mm | 105 mm | 120 mm | 120 mm | 140 mm | 140 mm |
| Chainstay Length | 442 mm | 443 mm | 442 mm | 443 mm | 442 mm | 443 mm | 442 mm | 443 mm | 442 mm | 443 mm | 442 mm | 443 mm | 442 mm | 443 mm | 442 mm | 443 mm |
| Wheelbase | 1125 mm | 1126 mm | 1149 mm | 1150 mm | 1159 mm | 1160 mm | 1184 mm | 1185 mm | 1201 mm | 1202 mm | 1216 mm | 1217 mm | 1247 mm | 1248 mm | 1275 mm | 1276 mm |
| Bottom Bracket Drop | 14 mm | 21 mm | 14 mm | 21 mm | 28 mm | 34 mm | 28 mm | 34 mm | 28 mm | 34 mm | 27 mm | 34 mm | 27 mm | 34 mm | 27 mm | 34 mm |
| Standover Height | 706 mm | 701 mm | 713 mm | 706 mm | 713 mm | 707 mm | 754 mm | 748 mm | 757 mm | 751 mm | 762 mm | 756 mm | 774 mm | 768 mm | 812 mm | 806 mm |
| Wheels | 27" | 27" | 27" | 27" | 29" | 29" | 29" | 29" | 29" | 29" | 29" | 29" | 29" | 29" | 29" | 29" |
About this model
Fuel EX 8 GX is part of the Trek Fuel model. 277 bikes variations carry this model name so far. Take a sneak peek at all Trek Fuel bikes models from 2021, by clicking here.
Model range prices
Trek Fuel EX 5 2021 is the most affordable bike of this model and has a price of 2099$. On the other hand, Trek Fuel EX 9.9 X01 AXS 2021, is the most expensive and costs 9499$.
Safety
Make sure you wear a helmet on every ride, and that your bike performs well. In short, this means checking the tires, brakes, and chain to make sure everything is in good working order.
Trail bikes average price
If you want to purchase a solid Trail bike, it is important to know that the average cost is 2762$. However, paying less money than this amount doesn’t mean that you couldn’t get a great Trail bike. As a general rule of thumb, you should always read reviews about the bike and its components before buying it to ensure you don’t pay too much.
At the moment of the release date, Trek Fuel EX 8 GX price was 3899$. Comparing this to the average Trail bike price, we see that the price is 41.17% higher.
Average weight for Trail bikes
Trail bikes weigh an average of 12.98 kg (28.62 lbs). Having an easier bike than average will give you a great advantage on climbs. However, a heavier bike will gain more speed on descends.
Weighing 13.78 kg (30.38 lbs), the Fuel EX 8 GX model is a bit heavier than average. In conclusion, the average Trail bike weighs 6.16% less than Fuel EX 8 GX.
Internal Cable Routing
It’s also important to mention the internal cable routing that this bike has. In short, this will allow you to keep your bike cables in great condition. Say goodbye to hanging cables.
Fuel EX 8 GX components
Fork
The Fox Rhythm Float 34 is included from the factory. It has a travel distance of 140mm. Bike forks are great for shock absorption and provide you with a smooth ride. To sum it all, when buying a bike, ensure that you look for a fork capable of decent travel.
Rear Shock
Trek Fuel EX 8 GX bike has the Size: XS model installed, and has a travel of 130mm. Bike rear shocks are a great way to increase comfort on the bike and give you more control when riding on technical trails. In short, if you want smooth rides, get a full-suspension bicycle.
Wheels
The Fuel EX 8 GX 2021 bike is equipped with 27.5″ aluminum wheels when leaving the factory. These wheels will provide you with more control over the bike. However, the overall traction of 27.5″ wheels is lower than 29″ wheels.
Brakes
We ride faster and faster, so a good braking system is essential on a bike nowadays. The Fuel EX 8 GX comes with Hydraulic Disc brakes. With Hydraulic Disc brakes, you’ll be able to stop on a dime, even in wet or icy conditions. To sum up, your safety is in good hands.
Dropper post
Trek Fuel EX 8 GX includes a dropper post. A dropper post is a must-have these days if you’re riding anything remotely technical. The main benefit of a dropper post is increased safety while riding. As mentioned above, the lever system allows you to quickly move the saddle out of the way when approaching descents or trail obstacles.