Quiver

2012 Specialized Epic Carbon 29 vs 2014 Trek X-Caliber

The XS is the Trek X-Caliber size closest to your S Specialized Epic Carbon 29. 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 X-Caliber

Compared with the Specialized Epic Carbon 29 in S, the Trek X-Caliber in XS places the top of the head tube at about the same height and 14 mm further back, relative to the bottom bracket. Its wheelbase is 5 mm shorter, which can contribute to quicker direction changes.

Frame stack
−1 mm
About the same height
Frame reach
−14 mm
Shorter frame reach
Wheelbase
−5 mm
Shorter: quicker to change direction
Head angle
−1.5°
Slacker: calmer steering
Chainstays
−3 mm
Shorter: livelier

The two frames

2012 Specialized Epic Carbon 29 (S)The Specialized Epic Carbon 29 frame drawn to scale.J 1075

Only the Specialized Epic Carbon 29 is drawn. The Trek X-Caliber numbers we have for size XS are missing the seat angle.

Geometry side by side

MeasurementSpecialized Epic Carbon 29 STrek X-Caliber XSDifference
Reach386mm372−14 mm
Stack586mm585−1 mm
Head tube angle70.5°69.0°−1.5°
Seat tube angle69.5°not listed
Chainstay length448mm445−3 mm
Wheelbase1075mm1070−5 mm
BB height331mm311−20 mm
Standover755mm660−95 mm
Seat tube length394mm343−51 mm
Effective top tubenot listed540
BB dropnot listed58
Head tube lengthnot listed100

Differences are the Trek X-Caliber minus the Specialized Epic Carbon 29. Full charts: 2012 Specialized Epic Carbon 29, 2014 Trek X-Caliber.

Where each sits in its class

Specialized Epic Carbon 29Trek X-Caliber

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 Carbon 29S-Works Carbon 29Trek X-Caliber4
ForkRockShox SID WorldSR Suntour M3030
Rear shockFox Mini-Brainnot listed
Framenot listedTrek Alpha Gold
Shifternot listedShimano Altus EF51
Derailleurnot listedShimano Altus, Shimano Altus M280
Cassettenot listedShimano HG31
Cranksetnot listedShimano M131
Wheelsetnot listedFormula DC-20
Tirenot listedBontrager XR1
Brakenot listedTrek HL 280
Stemnot listedBontrager Approved
Seatpostnot listedBontrager SSR
Saddlenot listedBontrager Evoke 1

Know what is on every bike.

Add your bike to Quiver. Keep its parts, setup, and service history together, then share your build.

Explore the app
A Transition Relay build sheet: frame, fork, shock and drivetrainThe Relay’s ride photo galleryThe Relay’s ride spectrum and 2D frame geometryThe garage: five bikes and 99 recorded partsA Specialized Tarmac SL8 road build sheet