2012 Trek Superfly AL vs 2012 Specialized Epic Carbon 29
The M is the Specialized Epic Carbon 29 size closest to your 17.5" Trek Superfly AL. 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 Specialized Epic Carbon 29
Compared with the Trek Superfly AL in 17.5", the Specialized Epic Carbon 29 in M places the top of the head tube 11 mm lower and about as far forward, relative to the bottom bracket. Its wheelbase is 9 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −11 mm
- Lower front end
- Frame reach
- −1 mm
- About the same reach
- Wheelbase
- −9 mm
- Shorter: quicker to change direction
- Head angle
- −0.5°
- Slacker: calmer steering
- Chainstays
- −4 mm
- Shorter: livelier
The two frames
We can't draw these frames yet. The Trek Superfly AL numbers we have for size 17.5" are missing the seat angle. The numbers below still compare.
Geometry side by side
| Measurement | Trek Superfly AL 17.5" | Specialized Epic Carbon 29 M | Difference |
|---|---|---|---|
| Reach | 416 | 415mm | −1 mm |
| Stack | 616 | 605mm | −11 mm |
| Head tube angle | 71° | 70.5° | −0.5° |
| Effective top tube | 597 | not listed | |
| Chainstay length | 452 | 448mm | −4 mm |
| Wheelbase | 1118 | 1109mm | −9 mm |
| BB height | 325 | 331mm | +6 mm |
| Standover | 751 | 766mm | +15 mm |
| Seat tube length | 445 | 424mm | −21 mm |
| Head tube length | 115 | not listed | |
| Seat tube angle | not listed | 69.5° |
Differences are the Specialized Epic Carbon 29 minus the Trek Superfly AL. Full charts: 2012 Trek Superfly AL, 2012 Specialized Epic Carbon 29.
Where each sits in its class
Trek Superfly ALSpecialized Epic Carbon 29
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 | Trek Superfly AL100 AL | Specialized Epic Carbon 29S-Works Carbon 29 |
|---|---|---|
| Frame | Trek Alpha Platinum | not listed |
| Fork | Fox Evolution | RockShox SID World |
| Shifter | SRAM X7 | not listed |
| Derailleur | SRAM X-7 | not listed |
| Cassette | Shimano HG62-10 | not listed |
| Crankset | SRAM S1000 | not listed |
| Wheelset | Bontrager FCC | not listed |
| Brake | Avid Elixir 1 | not listed |
| Headset | FSA NO.57E | not listed |
| Seatpost | Bontrager SSR | not listed |
| Saddle | Bontrager Evoke 1 | not listed |
| Rear shock | not listed | Fox Mini-Brain |
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