2021 Trek Fuel EX 9.8 Gen 5 vs 2020 Trek Slash
The S is the Trek Slash size closest to your S Trek Fuel EX 9.8 Gen 5. 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 9.8 Gen 5 in S, the Trek Slash in S places the top of the head tube 40 mm higher and 4 mm further back, relative to the bottom bracket. Its wheelbase is 28 mm longer, which can contribute to stability at speed.
- Frame stack
- +40 mm
- Higher front end
- Frame reach
- −4 mm
- Shorter frame reach
- Wheelbase
- +28 mm
- Longer: steadier at speed
- Head angle
- −0.9°
- Slacker: calmer steering
- Chainstays
- −3 mm
- Shorter: livelier
The two frames
Only the Trek Fuel EX 9.8 Gen 5 is drawn. The Trek Slash numbers we have for size S are missing the seat angle.
Geometry side by side
| Measurement | Trek Fuel EX 9.8 Gen 5 S | Trek Slash S | Difference |
|---|---|---|---|
| Reach | 420 | 416 | −4 mm |
| Stack | 568 | 608 | +40 mm |
| Head tube angle | 66.5° | 65.6° | −0.9° |
| Seat tube angle | 75.5° | not listed | |
| Effective top tube | 567 | 580 | +13 mm |
| Chainstay length | 436 | 433 | −3 mm |
| Wheelbase | 1143 | 1171 | +28 mm |
| BB drop | 14 | 21 | +7 mm |
| BB height | 341 | 352 | +11 mm |
| Standover | 708 | 746 | +38 mm |
| Seat tube length | 395 | 394 | −1 mm |
| Head tube length | 100 | 100 | ±0 mm |
Differences are the Trek Slash minus the Trek Fuel EX 9.8 Gen 5. Full charts: 2021 Trek Fuel EX 9.8 Gen 5, 2020 Trek Slash.
Where each sits in its class
Trek Fuel EX 9.8 Gen 5Trek 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 EX 9.8 Gen 59.8 GX AXS Gen 5 | Trek Slash8 |
|---|---|---|
| Frame | Trek OCLV | Trek Alpha Platinum |
| Fork | Fox 36 Performance | RockShox Yari RC |
| Shifter | SRAM GX Eagle AXS | SRAM GX Eagle |
| Derailleur | SRAM GX Eagle AXS | SRAM GX Eagle |
| Cassette | SRAM GX Eagle | SRAM GX Eagle |
| Chain | SRAM GX Eagle | SRAM GX Eagle |
| Crankset | SRAM GX Eagle | TruVativ Descendant |
| Bottom bracket | SRAM DUB | SRAM DUB |
| Wheelset | Bontrager Line Elite 30 | Bontrager Line Comp 30 |
| Tire | Bontrager XR4 Team Issue | Bontrager XR5 |
| Brake | SRAM G2 RS 4-piston | SRAM Guide R |
| Handlebar | Bontrager Line | Bontrager Line |
| Stem | Bontrager Line | Bontrager Line |
| Headset | Trek Knock Block | Trek Knock Block |
| Seatpost | Bontrager Line Elite Dropper | Bontrager Line |
| Saddle | Bontrager Arvada | Bontrager Arvada |
| Rear shock | not listed | RockShox Deluxe RT3 RE:aktiv |
| Rotor | not listed | SRAM Guide R |
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