2021 Trek Fuel EX vs 2020 Trek Slash
The XL is the Trek Slash size closest to your XXL Trek Fuel EX. We match frame stack and reach. This is a geometry comparison, not a fit recommendation; stem, spacers, handlebars and saddle setup also affect your riding position.
What changes on the Trek Slash
Compared with the Trek Fuel EX in XXL, the Trek Slash in XL places the top of the head tube 10 mm lower and 39 mm further back, relative to the bottom bracket. Its wheelbase is 22 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −10 mm
- Lower front end
- Frame reach
- −39 mm
- Shorter frame reach
- Wheelbase
- −22 mm
- Shorter: quicker to change direction
- Head angle
- −0.9°
- Slacker: calmer steering
- Chainstays
- −3 mm
- Shorter: livelier
The two frames
Only the Trek Fuel EX is drawn. The Trek Slash numbers we have for size XL are missing the seat angle.
Geometry side by side
| Measurement | Trek Fuel EX XXL | Trek Slash XL | Difference |
|---|---|---|---|
| Reach | 520 | 481 | −39 mm |
| Stack | 641 | 631 | −10 mm |
| Head tube angle | 66.5° | 65.6° | −0.9° |
| Seat tube angle | 75.5° | not listed | |
| Effective top tube | 687 | 651 | −36 mm |
| Chainstay length | 436 | 433 | −3 mm |
| Wheelbase | 1269 | 1247 | −22 mm |
| BB drop | 27 | 21 | −6 mm |
| BB height | 346 | 352 | +6 mm |
| Standover | 806 | 780 | −26 mm |
| Seat tube length | 540 | 521 | −19 mm |
| Head tube length | 140 | 125 | −15 mm |
Differences are the Trek Slash minus the Trek Fuel EX. Full charts: 2021 Trek Fuel EX, 2020 Trek Slash.
Where each sits in its class
Trek Fuel EXTrek Slash
Each bike is ranked against the other trail bikes on Quiver, on frame geometry alone. Not your hand position or ride feel.
What each ships with
The stock build of each bike's first listed trim. Parts that match are dimmed.
| Part | Trek Fuel EX5 Deore | Trek Slash8 |
|---|---|---|
| Frame | Trek Alpha Platinum | Trek Alpha Platinum |
| Fork | RockShox Recon Silver | RockShox Yari RC |
| Rear shock | X-Fusion Pro 2 | RockShox Deluxe RT3 RE:aktiv |
| Shifter | Shimano Deore XT Di2 | SRAM GX Eagle |
| Derailleur | Shimano Deore | SRAM GX Eagle |
| Cassette | Shimano Deore M6100 | SRAM GX Eagle |
| Crankset | Shimano MT511 | TruVativ Descendant |
| Wheelset | Alex Rims MD35 | Bontrager Line Comp 30 |
| Tire | Bontrager XR4 | Bontrager XR5 |
| Brake | Shimano MT200 | SRAM Guide R |
| Rotor | Shimano SM-RT56 | SRAM Guide R |
| Dropper post | TranzX JD-YSP18 | not listed |
| Chain | not listed | SRAM GX Eagle |
| Bottom bracket | not listed | SRAM DUB |
| Handlebar | not listed | Bontrager Line |
| Stem | not listed | Bontrager Line |
| Headset | not listed | Trek Knock Block |
| Seatpost | not listed | Bontrager Line |
| Saddle | not listed | Bontrager Arvada |
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