2018 Specialized Stumpjumper Men's Expert 27.5 vs 2020 Trek Slash
The M is the Trek Slash size closest to your M Specialized Stumpjumper Men's Expert 27.5. 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 Specialized Stumpjumper Men's Expert 27.5 in M, the Trek Slash in M places the top of the head tube 12 mm higher and 4 mm further back, relative to the bottom bracket. Its wheelbase is 7 mm longer, which can contribute to stability at speed.
- Frame stack
- +12 mm
- Higher front end
- Frame reach
- −4 mm
- Shorter frame reach
- Wheelbase
- +7 mm
- Longer: steadier at speed
- Head angle
- +0.1°
- About the same head angle
- Chainstays
- +1 mm
- About the same
The two frames
Only the Specialized Stumpjumper Men's Expert 27.5 is drawn. The Trek Slash numbers we have for size M are missing the seat angle.
Geometry side by side
| Measurement | Specialized Stumpjumper Men's Expert 27.5 M | Trek Slash M | Difference |
|---|---|---|---|
| Reach | 435mm | 431 | −4 mm |
| Stack | 596mm | 608 | +12 mm |
| Head tube angle | 65.5° | 65.6° | +0.1° |
| Seat tube angle | 75° | not listed | |
| Effective top tube | 595mm | 595 | ±0 mm |
| Chainstay length | 432mm | 433 | +1 mm |
| Wheelbase | 1179mm | 1186 | +7 mm |
| BB drop | 21mm | 21 | ±0 mm |
| BB height | 336mm | 352 | +16 mm |
| Standover | 743mm | 759 | +16 mm |
| Seat tube length | 410mm | 419 | +9 mm |
| Fork length | 542mm | not listed | |
| Head tube length | 110mm | 100 | −10 mm |
Differences are the Trek Slash minus the Specialized Stumpjumper Men's Expert 27.5. Full charts: 2018 Specialized Stumpjumper Men's Expert 27.5, 2020 Trek Slash.
Where each sits in its class
Specialized Stumpjumper Men's Expert 27.5Trek 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 | Specialized Stumpjumper Men's Expert 27.5Men's Expert 27.5 | Trek Slash8 |
|---|---|---|
| Fork | RockShox Pike RC | RockShox Yari RC |
| Rear shock | RockShox Deluxe RT3 | RockShox Deluxe RT3 RE:aktiv |
| Shifter | SRAM GX Eagle | SRAM GX Eagle |
| Derailleur | SRAM GX Eagle | SRAM GX Eagle |
| Cassette | SRAM GX Eagle | SRAM GX Eagle |
| Chain | SRAM GX Eagle | SRAM GX Eagle |
| Crankset | TruVativ Descendant | TruVativ Descendant |
| Tire | Specialized Butcher, Specialized Purgatory | Bontrager XR5 |
| Rim | Roval Traverse | not listed |
| Brake | SRAM Guide R | SRAM Guide R |
| Grips | Specialized Sip Grip | not listed |
| Seatpost | Specialized Command Post IRcc | Bontrager Line |
| Saddle | Specialized Phenom Comp | Bontrager Arvada |
| Frame | not listed | Trek Alpha Platinum |
| Bottom bracket | not listed | SRAM DUB |
| Wheelset | not listed | Bontrager Line Comp 30 |
| Rotor | not listed | SRAM Guide R |
| Handlebar | not listed | Bontrager Line |
| Stem | not listed | Bontrager Line |
| Headset | not listed | Trek Knock Block |
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