2019 Specialized Chisel Women's Expert vs 2017 Trek Superfly Women's
The M is the Trek Superfly Women's size closest to your S Specialized Chisel Women's Expert. 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 Superfly Women's
Compared with the Specialized Chisel Women's Expert in S, the Trek Superfly Women's in M places the top of the head tube 5 mm higher and 17 mm further forward, relative to the bottom bracket. Its wheelbase is 30 mm longer, which can contribute to stability at speed.
- Frame stack
- +5 mm
- Higher front end
- Frame reach
- +17 mm
- Longer frame reach
- Wheelbase
- +30 mm
- Longer: steadier at speed
- Head angle
- −0.5°
- Slacker: calmer steering
- Chainstays
- +5 mm
- Longer: more planted
The two frames
Only the Specialized Chisel Women's Expert is drawn. The Trek Superfly Women's numbers we have for size M are missing the seat angle.
Geometry side by side
| Measurement | Specialized Chisel Women's Expert S | Trek Superfly Women's M | Difference |
|---|---|---|---|
| Reach | 395mm | 412 | +17 mm |
| Stack | 595mm | 600 | +5 mm |
| Head tube angle | 69.8° | 69.3° | −0.5° |
| Seat tube angle | 74° | not listed | |
| Effective top tube | 567mm | 602 | +35 mm |
| Chainstay length | 430mm | 435 | +5 mm |
| Wheelbase | 1073mm | 1103 | +30 mm |
| BB drop | 57.5mm | 58 | +1 mm |
| BB height | 312.5mm | 311 | −2 mm |
| Standover | 760mm | 765 | +5 mm |
| Seat tube length | 400mm | 419 | +19 mm |
| Fork length | 496mm | not listed | |
| Head tube length | 95mm | 100 | +5 mm |
Differences are the Trek Superfly Women's minus the Specialized Chisel Women's Expert. Full charts: 2019 Specialized Chisel Women's Expert, 2017 Trek Superfly Women's.
Where each sits in its class
Specialized Chisel Women's ExpertTrek Superfly Women's
Each bike is ranked against the other XC 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 Chisel Women's ExpertWomen's Expert | Trek Superfly Women's6 Women's |
|---|---|---|
| Frame | Specialized D'Aluisio Smartweld M5 | Trek Alpha Platinum |
| Fork | RockShox Reba RL 29 | RockShox Reba RL |
| Shifter | SRAM NX Eagle | SRAM GX |
| Derailleur | SRAM NX Eagle | SRAM GX |
| Cassette | SRAM NX Eagle | SRAM PG 1130 |
| Chain | SRAM NX Eagle | SRAM 1110 |
| Crankset | TruVativ Stylo | SRAM GX-1000 |
| Bottom bracket | SRAM DUB | Trek PF89.5 |
| Tire | Specialized Fast Trak | Bontrager XR1 Expert |
| Brake | SRAM Level TL | SRAM Level T |
| Handlebar | Specialized Mini Rise | not listed |
| Grips | Specialized Sip Grip | not listed |
| Saddle | Specialized Myth Sport | Bontrager Ajna Comp WSD |
| Rim | not listed | Bontrager Mustang Elite |
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