Quiver

2013 Trek Superfly AL Pro vs 2012 Specialized Epic Carbon 29

The L is the Specialized Epic Carbon 29 size closest to your 19" Trek Superfly AL Pro. 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 Carbon 29

Compared with the Trek Superfly AL Pro in 19", the Specialized Epic Carbon 29 in L places the top of the head tube 12 mm lower and 5 mm further forward, relative to the bottom bracket. Its wheelbase is 3 mm shorter, which can contribute to quicker direction changes.

Frame stack
−12 mm
Lower front end
Frame reach
+5 mm
Longer frame reach
Wheelbase
−3 mm
Shorter: quicker to change direction
Head angle
−0.5°
Slacker: calmer steering
Chainstays
−4 mm
Shorter: livelier

The two frames

We can't draw these frames yet. The Trek Superfly AL Pro numbers we have for size 19" are missing the seat angle. The numbers below still compare.

Geometry side by side

MeasurementTrek Superfly AL Pro 19"Specialized Epic Carbon 29 LDifference
Reach433438mm+5 mm
Stack626614mm−12 mm
Head tube angle71°70.5°−0.5°
Effective top tube617not listed
Chainstay length452448mm−4 mm
Wheelbase11391136mm−3 mm
BB height325331mm+6 mm
Standover788775mm−13 mm
Seat tube length483463mm−20 mm
Head tube length125not listed
Seat tube anglenot listed70°

Differences are the Specialized Epic Carbon 29 minus the Trek Superfly AL Pro. Full charts: 2013 Trek Superfly AL Pro, 2012 Specialized Epic Carbon 29.

Where each sits in its class

Trek Superfly AL ProSpecialized Epic Carbon 29

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.

PartTrek Superfly AL Pro100 AL ProSpecialized Epic Carbon 29S-Works Carbon 29
FrameTrek Alpha Platinumnot listed
ForkFox EvolutionRockShox SID World
ShifterShimano Deore XTnot listed
DerailleurShimano Deore XT, Shimano Deore XT Shadownot listed
CassetteShimano SLXnot listed
CranksetShimano Deore XTnot listed
WheelsetTrek Bontrgernot listed
TireBontrager Team Issuenot listed
BrakeShimano Deore XTnot listed
HeadsetFSA NO.57Enot listed
SeatpostBontrager Rhythm Elitenot listed
SaddleBontrager Evoke 3not listed
Rear shocknot listedFox Mini-Brain

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