2018 Specialized Stumpjumper ST Women's Alloy 27.5 vs 2020 Trek Slash
The M is the Trek Slash size closest to your S Specialized Stumpjumper ST Women's Alloy 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 ST Women's Alloy 27.5 in S, the Trek Slash in M places the top of the head tube 22 mm higher and 6 mm further forward, relative to the bottom bracket. Its wheelbase is 37 mm longer, which can contribute to stability at speed.
- Frame stack
- +22 mm
- Higher front end
- Frame reach
- +6 mm
- Longer frame reach
- Wheelbase
- +37 mm
- Longer: steadier at speed
- Head angle
- −0.9°
- Slacker: calmer steering
- Chainstays
- +1 mm
- About the same
The two frames
Only the Specialized Stumpjumper ST Women's Alloy 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 ST Women's Alloy 27.5 S | Trek Slash M | Difference |
|---|---|---|---|
| Reach | 425mm | 431 | +6 mm |
| Stack | 586mm | 608 | +22 mm |
| Head tube angle | 66.5° | 65.6° | −0.9° |
| Seat tube angle | 76.3° | not listed | |
| Effective top tube | 568mm | 595 | +27 mm |
| Chainstay length | 432mm | 433 | +1 mm |
| Wheelbase | 1149mm | 1186 | +37 mm |
| BB drop | 28mm | 21 | −7 mm |
| BB height | 325mm | 352 | +27 mm |
| Standover | 744mm | 759 | +15 mm |
| Seat tube length | 380mm | 419 | +39 mm |
| Fork length | 522mm | not listed | |
| Head tube length | 105mm | 100 | −5 mm |
Differences are the Trek Slash minus the Specialized Stumpjumper ST Women's Alloy 27.5. Full charts: 2018 Specialized Stumpjumper ST Women's Alloy 27.5, 2020 Trek Slash.
Where each sits in its class
Specialized Stumpjumper ST Women's Alloy 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 ST Women's Alloy 27.5Women's Alloy 27.5 | Trek Slash8 |
|---|---|---|
| Fork | RockShox Recon RL | RockShox Yari RC |
| Rear shock | X-Fusion Pro RL | RockShox Deluxe RT3 RE:aktiv |
| Shifter | Shimano SLX | SRAM GX Eagle |
| Derailleur | Shimano SLX | SRAM GX Eagle |
| Chain | KMC X-11 | SRAM GX Eagle |
| Crankset | SRAM NX Power | TruVativ Descendant |
| Bottom bracket | SRAM Power | SRAM DUB |
| Tire | Specialized Butcher, Specialized Purgatory | Bontrager XR5 |
| Brake | Tektro Gemini Comp | SRAM Guide R |
| Grips | Specialized Sip Grip | not listed |
| Saddle | Specialized Myth Sport | Bontrager Arvada |
| Frame | not listed | Trek Alpha Platinum |
| Cassette | not listed | SRAM GX Eagle |
| 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 |
| Seatpost | not listed | Bontrager Line |
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