2012 Trek Superfly AL vs 2014 Trek X-Caliber
The M is the Trek X-Caliber 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 Trek X-Caliber
Compared with the Trek Superfly AL in 17.5", the Trek X-Caliber in M places the top of the head tube 16 mm lower and 3 mm further back, relative to the bottom bracket.
- Frame stack
- −16 mm
- Lower front end
- Frame reach
- −3 mm
- Shorter frame reach
- Wheelbase
- −2 mm
- About the same
- Head angle
- −1.7°
- Slacker: calmer steering
- Chainstays
- −7 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" | Trek X-Caliber M | Difference |
|---|---|---|---|
| Reach | 416 | 413 | −3 mm |
| Stack | 616 | 600 | −16 mm |
| Head tube angle | 71° | 69.3° | −1.7° |
| Effective top tube | 597 | 602 | +5 mm |
| Chainstay length | 452 | 445 | −7 mm |
| Wheelbase | 1118 | 1116 | −2 mm |
| BB height | 325 | 316 | −9 mm |
| Standover | 751 | 765 | +14 mm |
| Seat tube length | 445 | 419 | −26 mm |
| Head tube length | 115 | 100 | −15 mm |
| BB drop | not listed | 53 |
Differences are the Trek X-Caliber minus the Trek Superfly AL. Full charts: 2012 Trek Superfly AL, 2014 Trek X-Caliber.
Where each sits in its class
Trek Superfly ALTrek X-Caliber
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 | Trek X-Caliber4 |
|---|---|---|
| Frame | Trek Alpha Platinum | Trek Alpha Gold |
| Fork | Fox Evolution | SR Suntour M3030 |
| Shifter | SRAM X7 | Shimano Altus EF51 |
| Derailleur | SRAM X-7 | Shimano Altus, Shimano Altus M280 |
| Cassette | Shimano HG62-10 | Shimano HG31 |
| Crankset | SRAM S1000 | Shimano M131 |
| Wheelset | Bontrager FCC | Formula DC-20 |
| Brake | Avid Elixir 1 | Trek HL 280 |
| Headset | FSA NO.57E | not listed |
| Seatpost | Bontrager SSR | Bontrager SSR |
| Saddle | Bontrager Evoke 1 | Bontrager Evoke 1 |
| Tire | not listed | Bontrager XR1 |
| Stem | not listed | Bontrager Approved |
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