Quiver

2017 Specialized Epic Hardtail vs 2015 Trek Superfly 9.7

The M is the Trek Superfly 9.7 size closest to your M Specialized Epic Hardtail. 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 9.7

Compared with the Specialized Epic Hardtail in M, the Trek Superfly 9.7 in M places the top of the head tube 10 mm lower and about as far forward, relative to the bottom bracket. Its wheelbase is 25 mm longer, which can contribute to stability at speed.

Frame stack
−10 mm
Lower front end
Frame reach
−2 mm
About the same reach
Wheelbase
+25 mm
Longer: steadier at speed
Head angle
−1.7°
Slacker: calmer steering
Chainstays
+5 mm
Longer: more planted

The two frames

2017 Specialized Epic Hardtail (M)The Specialized Epic Hardtail frame drawn to scale.J 1078

Only the Specialized Epic Hardtail is drawn. The Trek Superfly 9.7 numbers we have for size M are missing the seat angle.

Geometry side by side

MeasurementSpecialized Epic Hardtail MTrek Superfly 9.7 MDifference
Reach414mm412−2 mm
Stack610mm600−10 mm
Head tube angle71°69.3°−1.7°
Seat tube angle73.5°not listed
Effective top tube593mm602+9 mm
Chainstay length430mm435+5 mm
Wheelbase1078mm1103+25 mm
BB drop61mm58−3 mm
BB height310mm311+1 mm
Standover799mm767−32 mm
Seat tube length434mm419−15 mm
Fork length496mmnot listed
Head tube length100mm100±0 mm

Differences are the Trek Superfly 9.7 minus the Specialized Epic Hardtail. Full charts: 2017 Specialized Epic Hardtail, 2015 Trek Superfly 9.7.

Where each sits in its class

Specialized Epic HardtailTrek Superfly 9.7

AggressivePositionUpright
CalmSteeringQuick
PlayfulBalancePlanted

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.

PartSpecialized Epic HardtailHardtailTrek Superfly 9.79.7
ForkRockShox Reba RLFox Evolution
ShifterShimano SLX M7000Shimano SLX
DerailleurShimano SLX M7025, Shimano XT M8000Shimano SLX, Shimano Deore XT
CassetteSRAM PG-1130Shimano HG50
ChainSRAM PC-1110KMC X10
CranksetRace Face AeffectShimano SLX
TireSpecialized Fast TrakBontrager XR1 Expert
RimSpecialized Stoutnot listed
BrakeShimano Deore M506Shimano SLX
HandlebarSpecialized Stout XCnot listed
GripsSpecialized Sip Gripnot listed
SaddleSpecialized Phenom CompBontrager Evoke 2
Framenot listedTrek OCLV
Wheelsetnot listedBontrager Mustang Elite
Headsetnot listedFSA IS2

Know what is on every bike.

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