2017 Specialized Epic FSR World Cup Frameset vs 2015 Trek Superfly 9.8 SL
The L is the Trek Superfly 9.8 SL size closest to your M Specialized Epic FSR World Cup Frameset. 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 Frameset in M, the Trek Superfly 9.8 SL in L places the top of the head tube 6 mm higher and 3 mm further forward, relative to the bottom bracket. Its wheelbase is 24 mm longer, which can contribute to stability at speed.
- Frame stack
- +6 mm
- Higher front end
- Frame reach
- +3 mm
- Longer frame reach
- Wheelbase
- +24 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 World Cup Frameset is drawn. The Trek Superfly 9.8 SL numbers we have for size L are missing the seat angle.
Geometry side by side
| Measurement | Specialized Epic FSR World Cup Frameset M | Trek Superfly 9.8 SL L | Difference |
|---|---|---|---|
| Reach | 423mm | 426 | +3 mm |
| Stack | 597mm | 603 | +6 mm |
| Head tube angle | 70.75° | 69.6° | −1.2° |
| Seat tube angle | 74° | not listed | |
| Effective top tube | 592mm | 622 | +30 mm |
| Chainstay length | 439mm | 445 | +6 mm |
| Wheelbase | 1103mm | 1127 | +24 mm |
| BB drop | 40mm | 53 | +13 mm |
| BB height | 332mm | 316 | −16 mm |
| Standover | 774mm | 789 | +15 mm |
| Seat tube length | 434mm | 457 | +23 mm |
| Fork length | 504mm | not listed | |
| Head tube length | 105mm | 103 | −2 mm |
Differences are the Trek Superfly 9.8 SL minus the Specialized Epic FSR World Cup Frameset. Full charts: 2017 Specialized Epic FSR World Cup Frameset, 2015 Trek Superfly 9.8 SL.
Where each sits in its class
Specialized Epic FSR World Cup FramesetTrek 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 Cup FramesetS-Works FSR World Cup Frameset | Trek Superfly 9.8 SL9.8 SL |
|---|---|---|
| Rear shock | Fox Epic | not listed |
| Frame | not listed | Trek OCLV |
| Fork | not listed | Fox Performance |
| Shifter | not listed | SRAM X1 |
| Derailleur | not listed | SRAM X01 |
| Cassette | not listed | SRAM XG 1180 |
| Chain | not listed | SRAM PC-1130 |
| Crankset | not listed | SRAM X1 1400 X-Sync |
| Wheelset | not listed | DT Swiss X1700 |
| Tire | not listed | Bontrager XR1 Team Issue |
| Brake | not listed | Shimano Deore XT |
| Headset | not listed | FSA IS2 |
| Seatpost | not listed | Bontrager Rhythm Elite |
| Saddle | not listed | Bontrager Evoke RXL |
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