Quiver

2017 Specialized Epic Hardtail Alloy 29 vs 2015 Trek Superfly 9.7

The Trek Superfly 9.7 size closest to your M is the M. Compare the M instead

What changes on the Trek Superfly 9.7

Compared with the Specialized Epic Hardtail Alloy 29 in M, the Trek Superfly 9.7 in L places the top of the head tube 9 mm lower and 29 mm further forward, relative to the bottom bracket. Its wheelbase is 53 mm longer, which can contribute to stability at speed.

Frame stack
−9 mm
Lower front end
Frame reach
+29 mm
Longer frame reach
Wheelbase
+53 mm
Longer: steadier at speed
Head angle
−1.4°
Slacker: calmer steering
Chainstays
+5 mm
Longer: more planted

The two frames

2017 Specialized Epic Hardtail Alloy 29 (M)The Specialized Epic Hardtail Alloy 29 frame drawn to scale.J 1078

Only the Specialized Epic Hardtail Alloy 29 is drawn. The Trek Superfly 9.7 numbers we have for size L are missing the seat angle.

Geometry side by side

MeasurementSpecialized Epic Hardtail Alloy 29 MTrek Superfly 9.7 LDifference
Reach414mm443+29 mm
Stack610mm601−9 mm
Head tube angle71°69.6°−1.4°
Seat tube angle73.5°not listed
Effective top tube593mm639+46 mm
Chainstay length430mm435+5 mm
Wheelbase1078mm1131+53 mm
BB drop61mm58−3 mm
BB height310mm311+1 mm
Standover799mm792−7 mm
Seat tube length434mm470+36 mm
Fork length496mmnot listed
Head tube length100mm100±0 mm

Differences are the Trek Superfly 9.7 minus the Specialized Epic Hardtail Alloy 29. Full charts: 2017 Specialized Epic Hardtail Alloy 29, 2015 Trek Superfly 9.7.

Where each sits in its class

Specialized Epic Hardtail Alloy 29Trek 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 Hardtail Alloy 29Trek Superfly 9.79.7
Framenot listedTrek OCLV
Forknot listedFox Evolution
Shifternot listedShimano SLX
Derailleurnot listedShimano SLX, Shimano Deore XT
Cassettenot listedShimano HG50
Chainnot listedKMC X10
Cranksetnot listedShimano SLX
Wheelsetnot listedBontrager Mustang Elite
Tirenot listedBontrager XR1 Expert
Brakenot listedShimano SLX
Headsetnot listedFSA IS2
Saddlenot listedBontrager Evoke 2

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