2017 Specialized Epic Hardtail Alloy 29 vs 2015 Trek Superfly 9.7
The XL is the Trek Superfly 9.7 size closest to your XL Specialized Epic Hardtail Alloy 29. 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 9.7
Compared with the Specialized Epic Hardtail Alloy 29 in XL, the Trek Superfly 9.7 in XL places the top of the head tube 20 mm lower and about as far forward, relative to the bottom bracket. Its wheelbase is 21 mm longer, which can contribute to stability at speed.
- Frame stack
- −20 mm
- Lower front end
- Frame reach
- −1 mm
- About the same reach
- Wheelbase
- +21 mm
- Longer: steadier at speed
- Head angle
- −1.4°
- Slacker: calmer steering
- Chainstays
- +5 mm
- Longer: more planted
The two frames
Only the Specialized Epic Hardtail Alloy 29 is drawn. The Trek Superfly 9.7 numbers we have for size XL are missing the seat angle.
Geometry side by side
| Measurement | Specialized Epic Hardtail Alloy 29 XL | Trek Superfly 9.7 XL | Difference |
|---|---|---|---|
| Reach | 458mm | 457 | −1 mm |
| Stack | 639mm | 619 | −20 mm |
| Head tube angle | 71° | 69.6° | −1.4° |
| Seat tube angle | 73.5° | not listed | |
| Effective top tube | 643mm | 659 | +16 mm |
| Chainstay length | 430mm | 435 | +5 mm |
| Wheelbase | 1131mm | 1152 | +21 mm |
| BB drop | 61mm | 58 | −3 mm |
| BB height | 310mm | 311 | +1 mm |
| Standover | 849mm | 829 | −20 mm |
| Seat tube length | 505mm | 521 | +16 mm |
| Fork length | 496mm | not listed | |
| Head tube length | 130mm | 120 | −10 mm |
Differences are the Trek Superfly 9.7 minus the Specialized Epic Hardtail Alloy 29. Full charts: 2017 Specialized Epic Hardtail Alloy 29, 2015 Trek Superfly 9.7.
Where each sits in its class
Specialized Epic Hardtail Alloy 29Trek Superfly 9.7
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 Epic Hardtail Alloy 29 | Trek Superfly 9.79.7 |
|---|---|---|
| Frame | not listed | Trek OCLV |
| Fork | not listed | Fox Evolution |
| Shifter | not listed | Shimano SLX |
| Derailleur | not listed | Shimano SLX, Shimano Deore XT |
| Cassette | not listed | Shimano HG50 |
| Chain | not listed | KMC X10 |
| Crankset | not listed | Shimano SLX |
| Wheelset | not listed | Bontrager Mustang Elite |
| Tire | not listed | Bontrager XR1 Expert |
| Brake | not listed | Shimano SLX |
| Headset | not listed | FSA IS2 |
| Saddle | not listed | Bontrager Evoke 2 |
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