2017 Specialized Epic FSR Comp vs 2015 Trek Superfly 9.8 SL
The XXL is the Trek Superfly 9.8 SL size closest to your XL Specialized Epic FSR Comp. 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 9.8 SL
Compared with the Specialized Epic FSR Comp in XL, the Trek Superfly 9.8 SL in XXL places the top of the head tube 17 mm lower and about as far forward, relative to the bottom bracket.
- Frame stack
- −17 mm
- Lower front end
- Frame reach
- ±0 mm
- About the same reach
- Wheelbase
- +1 mm
- About the same
- Head angle
- −0.9°
- Slacker: calmer steering
- Chainstays
- −3 mm
- Shorter: livelier
The two frames
Only the Specialized Epic FSR Comp is drawn. The Trek Superfly 9.8 SL numbers we have for size XXL are missing the seat angle.
Geometry side by side
| Measurement | Specialized Epic FSR Comp XL | Trek Superfly 9.8 SL XXL | Difference |
|---|---|---|---|
| Reach | 462mm | 462 | ±0 mm |
| Stack | 634mm | 617 | −17 mm |
| Head tube angle | 70.5° | 69.6° | −0.9° |
| Seat tube angle | 74° | not listed | |
| Effective top tube | 647mm | 663 | +16 mm |
| Chainstay length | 448mm | 445 | −3 mm |
| Wheelbase | 1168mm | 1169 | +1 mm |
| BB drop | 40mm | 53 | +13 mm |
| BB height | 332mm | 316 | −16 mm |
| Standover | 793mm | 844 | +51 mm |
| Seat tube length | 520mm | 545 | +25 mm |
| Fork length | 506mm | not listed | |
| Head tube length | 145mm | 118 | −27 mm |
Differences are the Trek Superfly 9.8 SL minus the Specialized Epic FSR Comp. Full charts: 2017 Specialized Epic FSR Comp, 2015 Trek Superfly 9.8 SL.
Where each sits in its class
Specialized Epic FSR CompTrek Superfly 9.8 SL
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 FSR CompFSR Comp | Trek Superfly 9.8 SL9.8 SL |
|---|---|---|
| Fork | RockShox Reba RL | Fox Performance |
| Rear shock | Fox Epic | not listed |
| Shifter | Shimano SLX M7000 | SRAM X1 |
| Derailleur | Shimano SLX M7025, Shimano XT M8000 | SRAM X01 |
| Cassette | Shimano SLX M7000 | SRAM XG 1180 |
| Chain | KMC X11 EL | SRAM PC-1130 |
| Crankset | Race Face Aeffect | SRAM X1 1400 X-Sync |
| Tire | Specialized Fast Trak | Bontrager XR1 Team Issue |
| Rim | Roval Control | not listed |
| Brake | Shimano Deore M506 | Shimano Deore XT |
| Grips | Specialized Sip Grip | not listed |
| Saddle | Specialized Phenom Comp | Bontrager Evoke RXL |
| Frame | not listed | Trek OCLV |
| Wheelset | not listed | DT Swiss X1700 |
| Headset | not listed | FSA IS2 |
| Seatpost | not listed | Bontrager Rhythm Elite |
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