Quiver

2013 Trek Superfly SL vs 2015 Specialized Epic Expert Carbon 29

The L is the Specialized Epic Expert Carbon 29 size closest to your L Trek Superfly 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 Expert Carbon 29

Compared with the Trek Superfly SL in L, the Specialized Epic Expert Carbon 29 in L places the top of the head tube 3 mm higher and 5 mm further forward, relative to the bottom bracket. Its wheelbase is 9 mm shorter, which can contribute to quicker direction changes.

Frame stack
+3 mm
Higher front end
Frame reach
+5 mm
Longer frame reach
Wheelbase
−9 mm
Shorter: quicker to change direction
Head angle
+0.5°
Steeper: sharper steering
Chainstays
−4 mm
Shorter: livelier

The two frames

2013 Trek Superfly SL (L) and 2015 Specialized Epic Expert Carbon 29 (L), lined up at the bottom bracketBoth frames drawn to scale. The Trek Superfly SL is drawn in full with its measurements, and the Specialized Epic Expert Carbon 29 is the colored outline on top.J 1149

Trek Superfly SL, LSpecialized Epic Expert Carbon 29, LDrawn to scale and lined up at the bottom bracket.

Geometry side by side

MeasurementTrek Superfly SL LSpecialized Epic Expert Carbon 29 LDifference
Reach436441mm+5 mm
Stack612615mm+3 mm
Head tube angle70°70.5°+0.5°
Seat tube angle70°69.6°−0.4°
Effective top tube606620mm+14 mm
Chainstay length452448mm−4 mm
Wheelbase11491140mm−9 mm
BB drop3940mm+1 mm
BB height330332mm+2 mm
Standover763780mm+17 mm
Seat tube length483470mm−13 mm
Head tube length125120mm−5 mm

Differences are the Specialized Epic Expert Carbon 29 minus the Trek Superfly SL. Full charts: 2013 Trek Superfly SL, 2015 Specialized Epic Expert Carbon 29.

Where each sits in its class

Trek Superfly SLSpecialized Epic Expert 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 SL100 SLSpecialized Epic Expert Carbon 29Expert Carbon 29
FrameTrek OCLVnot listed
ForkFox EvolutionRockShox SID 29 Brain
ShifterSRAM X7Shimano SLX
DerailleurSRAM X-7, SRAM X-9SRAM X-0, Shimano XTR Shadow Plus
CassetteShimano HG62SRAM PG-1050
CranksetSRAM S1000SRAM S-2200
Bottom bracketTrek BB95not listed
BrakeAvid Elixir 7Magura MTS
HeadsetCane Creek IS-3not listed
SeatpostBontrager Rhythm Elitenot listed
SaddleBontrager Evoke 2Specialized Phenom Comp
Rear shocknot listedFox Mini-Brain
Chainnot listedSRAM 1051
Wheelsetnot listedRoval Control
Tirenot listedSpecialized S-Works Fast Trak Control, Specialized Fast Trak Control
Gripsnot listedSpecialized Sip Grip

Know what is on every bike.

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