2017 Specialized Epic FSR Pro Carbon World Cup vs 2015 Trek Superfly 9.8 SL
The XXL is the Trek Superfly 9.8 SL size closest to your XL Specialized Epic FSR Pro Carbon World Cup. 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 Pro Carbon World Cup in XL, the Trek Superfly 9.8 SL in XXL places the top of the head tube 13 mm lower and 3 mm further back, relative to the bottom bracket. Its wheelbase is 12 mm longer, which can contribute to stability at speed.
- Frame stack
- −13 mm
- Lower front end
- Frame reach
- −3 mm
- Shorter frame reach
- Wheelbase
- +12 mm
- Longer: steadier at speed
- Head angle
- −1.2°
- Slacker: calmer steering
- Chainstays
- +6 mm
- Longer: more planted
The two frames
Only the Specialized Epic FSR Pro Carbon World Cup 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 Pro Carbon World Cup XL | Trek Superfly 9.8 SL XXL | Difference |
|---|---|---|---|
| Reach | 465mm | 462 | −3 mm |
| Stack | 630mm | 617 | −13 mm |
| Head tube angle | 70.75° | 69.6° | −1.2° |
| Seat tube angle | 74° | not listed | |
| Effective top tube | 643mm | 663 | +20 mm |
| Chainstay length | 439mm | 445 | +6 mm |
| Wheelbase | 1157mm | 1169 | +12 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 | 504mm | not listed | |
| Head tube length | 140mm | 118 | −22 mm |
Differences are the Trek Superfly 9.8 SL minus the Specialized Epic FSR Pro Carbon World Cup. Full charts: 2017 Specialized Epic FSR Pro Carbon World Cup, 2015 Trek Superfly 9.8 SL.
Where each sits in its class
Specialized Epic FSR Pro Carbon World CupTrek 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 Pro Carbon World CupFSR Pro Carbon World Cup | Trek Superfly 9.8 SL9.8 SL |
|---|---|---|
| Fork | RockShox SID | Fox Performance |
| Rear shock | Fox Epic | not listed |
| Shifter | SRAM X01 Eagle | SRAM X1 |
| Derailleur | SRAM X01 Eagle | SRAM X01 |
| Cassette | SRAM X01 Eagle | SRAM XG 1180 |
| Chain | SRAM X01 Eagle | SRAM PC-1130 |
| Crankset | SRAM X1 Eagle | SRAM X1 1400 X-Sync |
| Chainring | SRAM X-Sync | not listed |
| Wheelset | Roval Control | DT Swiss X1700 |
| Tire | Specialized Fast Trak | Bontrager XR1 Team Issue |
| Brake | Shimano XT M8000 | Shimano Deore XT |
| Grips | Specialized Sip Grip | not listed |
| Saddle | Specialized Phenom Expert | Bontrager Evoke RXL |
| Frame | not listed | Trek OCLV |
| Headset | not listed | FSA IS2 |
| Seatpost | not listed | Bontrager Rhythm Elite |
Know what is on every bike.
Add your bike to Quiver. Keep its parts, setup, and service history together, then share your build.
Explore the app
