2017 Specialized Epic FSR World Cup vs 2015 Trek Superfly 9.8 SL
The S is the Trek Superfly 9.8 SL size closest to your S Specialized Epic FSR 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 World Cup in S, the Trek Superfly 9.8 SL in S places the top of the head tube 19 mm higher and 12 mm further back, relative to the bottom bracket. Its wheelbase is 17 mm longer, which can contribute to stability at speed.
- Frame stack
- +19 mm
- Higher front end
- Frame reach
- −12 mm
- Shorter frame reach
- Wheelbase
- +17 mm
- Longer: steadier at speed
- Head angle
- −1.5°
- Slacker: calmer steering
- Chainstays
- +6 mm
- Longer: more planted
The two frames
Only the Specialized Epic FSR World Cup is drawn. The Trek Superfly 9.8 SL numbers we have for size S are missing the seat angle.
Geometry side by side
| Measurement | Specialized Epic FSR World Cup S | Trek Superfly 9.8 SL S | Difference |
|---|---|---|---|
| Reach | 398mm | 386 | −12 mm |
| Stack | 583mm | 602 | +19 mm |
| Head tube angle | 70.75° | 69.3° | −1.5° |
| Seat tube angle | 74° | not listed | |
| Effective top tube | 562mm | 570 | +8 mm |
| Chainstay length | 439mm | 445 | +6 mm |
| Wheelbase | 1073mm | 1090 | +17 mm |
| BB drop | 40mm | 53 | +13 mm |
| BB height | 332mm | 316 | −16 mm |
| Standover | 770mm | 748 | −22 mm |
| Seat tube length | 400mm | 368 | −32 mm |
| Fork length | 504mm | not listed | |
| Head tube length | 90mm | 103 | +13 mm |
Differences are the Trek Superfly 9.8 SL minus the Specialized Epic FSR World Cup. Full charts: 2017 Specialized Epic FSR World Cup, 2015 Trek Superfly 9.8 SL.
Where each sits in its class
Specialized Epic FSR 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 World CupS-Works FSR World Cup | Trek Superfly 9.8 SL9.8 SL |
|---|---|---|
| Fork | RockShox SID Brain World | Fox Performance |
| Rear shock | Fox Epic | not listed |
| Shifter | SRAM XX1 Eagle | SRAM X1 |
| Derailleur | SRAM XX1 Eagle | SRAM X01 |
| Cassette | SRAM X01 Eagle | SRAM XG 1180 |
| Chain | SRAM XX1 Eagle | SRAM PC-1130 |
| Crankset | SRAM XX1 Eagle | SRAM X1 1400 X-Sync |
| Tire | Specialized Fast Trak | Bontrager XR1 Team Issue |
| Hub | Roval Control SL | not listed |
| Rim | Roval Control SL 29 | not listed |
| Brake | SRAM Level Ultimate | Shimano Deore XT |
| Stem | Syntace F109 | not listed |
| Grips | Specialized Sip Grip | not listed |
| Saddle | Specialized S-Works Phenom | 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 |
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
