2015 Trek Superfly 9.8 SL vs 2017 Specialized Epic FSR Comp
The M is the Specialized Epic FSR Comp size closest to your L Trek Superfly 9.8 SL. 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 Specialized Epic FSR Comp
Compared with the Trek Superfly 9.8 SL in L, the Specialized Epic FSR Comp in M places the top of the head tube at about the same height and 8 mm further back, relative to the bottom bracket. Its wheelbase is 15 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −2 mm
- About the same height
- Frame reach
- −8 mm
- Shorter frame reach
- Wheelbase
- −15 mm
- Shorter: quicker to change direction
- Head angle
- +0.9°
- Steeper: sharper steering
- Chainstays
- +3 mm
- Longer: more planted
The two frames
We can't draw these frames yet. The Trek Superfly 9.8 SL numbers we have for size L are missing the seat angle. The numbers below still compare.
Geometry side by side
| Measurement | Trek Superfly 9.8 SL L | Specialized Epic FSR Comp M | Difference |
|---|---|---|---|
| Reach | 426 | 418mm | −8 mm |
| Stack | 603 | 601mm | −2 mm |
| Head tube angle | 69.6° | 70.5° | +0.9° |
| Effective top tube | 622 | 593mm | −29 mm |
| Chainstay length | 445 | 448mm | +3 mm |
| Wheelbase | 1127 | 1112mm | −15 mm |
| BB drop | 53 | 40mm | −13 mm |
| BB height | 316 | 332mm | +16 mm |
| Standover | 789 | 781mm | −8 mm |
| Seat tube length | 457 | 434mm | −23 mm |
| Head tube length | 103 | 110mm | +7 mm |
| Seat tube angle | not listed | 74° | |
| Fork length | not listed | 506mm |
Differences are the Specialized Epic FSR Comp minus the Trek Superfly 9.8 SL. Full charts: 2015 Trek Superfly 9.8 SL, 2017 Specialized Epic FSR Comp.
Where each sits in its class
Trek Superfly 9.8 SLSpecialized Epic FSR Comp
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 | Trek Superfly 9.8 SL9.8 SL | Specialized Epic FSR CompFSR Comp |
|---|---|---|
| Frame | Trek OCLV | not listed |
| Fork | Fox Performance | RockShox Reba RL |
| Shifter | SRAM X1 | Shimano SLX M7000 |
| Derailleur | SRAM X01 | Shimano SLX M7025, Shimano XT M8000 |
| Cassette | SRAM XG 1180 | Shimano SLX M7000 |
| Chain | SRAM PC-1130 | KMC X11 EL |
| Crankset | SRAM X1 1400 X-Sync | Race Face Aeffect |
| Wheelset | DT Swiss X1700 | not listed |
| Tire | Bontrager XR1 Team Issue | Specialized Fast Trak |
| Brake | Shimano Deore XT | Shimano Deore M506 |
| Headset | FSA IS2 | not listed |
| Seatpost | Bontrager Rhythm Elite | not listed |
| Saddle | Bontrager Evoke RXL | Specialized Phenom Comp |
| Rear shock | not listed | Fox Epic |
| Rim | not listed | Roval Control |
| Grips | not listed | Specialized Sip Grip |
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