2017 Specialized Epic FSR vs 2017 Trek X-Caliber
The M is the Trek X-Caliber size closest to your M Specialized Epic FSR. 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 Specialized Epic FSR in M, the Trek X-Caliber in M places the top of the head tube at about the same height and 5 mm further back, relative to the bottom bracket. Its wheelbase is 4 mm longer, which can contribute to stability at speed.
- Frame stack
- −1 mm
- About the same height
- Frame reach
- −5 mm
- Shorter frame reach
- Wheelbase
- +4 mm
- Longer: steadier at speed
- Head angle
- −1.2°
- Slacker: calmer steering
- Chainstays
- −3 mm
- Shorter: livelier
The two frames
Specialized Epic FSR, MTrek X-Caliber, MDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Epic FSR M | Trek X-Caliber M | Difference |
|---|---|---|---|
| Reach | 418mm | 413 | −5 mm |
| Stack | 601mm | 600 | −1 mm |
| Head tube angle | 70.5° | 69.3° | −1.2° |
| Seat tube angle | 74° | 72.5° | −1.5° |
| Effective top tube | 593mm | 602 | +9 mm |
| Chainstay length | 448mm | 445 | −3 mm |
| Wheelbase | 1112mm | 1116 | +4 mm |
| BB drop | 40mm | 53 | +13 mm |
| BB height | 332mm | 316 | −16 mm |
| Standover | 774mm | 765 | −9 mm |
| Seat tube length | 434mm | 419 | −15 mm |
| Fork length | 506mm | not listed | |
| Head tube length | 105mm | 100 | −5 mm |
Differences are the Trek X-Caliber minus the Specialized Epic FSR. Full charts: 2017 Specialized Epic FSR, 2017 Trek X-Caliber.
Where each sits in its class
Specialized Epic FSRTrek 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 | Specialized Epic FSRS-Works FSR | Trek X-Caliber7 |
|---|---|---|
| Rear shock | Fox Epic | not listed |
| Frame | not listed | Trek Alpha Gold |
| Shifter | not listed | Shimano Acera M3000 |
| Derailleur | not listed | Shimano Acera, Shimano Acera M3000 |
| Cassette | not listed | Shimano HG20 |
| Chain | not listed | KMC X9 |
| Crankset | not listed | Shimano Acera M3000 |
| Wheelset | not listed | Formula DC-20 |
| Tire | not listed | Bontrager XR2 |
| Hub | not listed | Formula DC20, Formula DC22 |
| Rim | not listed | Bontrager Connection |
| Brake | not listed | Shimano Acera M315 |
| Seatpost | not listed | Bontrager SSR |
| Saddle | not listed | Bontrager Evoke 1.5 |
Know what is on every bike.
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