Quiver

2015 Specialized Epic 29 World Cup Frameset vs 2017 Trek X-Caliber

The XL is the Trek X-Caliber size closest to your XL Specialized Epic 29 World Cup Frameset. 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 29 World Cup Frameset in XL, the Trek X-Caliber in XL places the top of the head tube 10 mm lower and 7 mm further back, relative to the bottom bracket. Its wheelbase is 8 mm longer, which can contribute to stability at speed.

Frame stack
−10 mm
Lower front end
Frame reach
−7 mm
Shorter frame reach
Wheelbase
+8 mm
Longer: steadier at speed
Head angle
−1.4°
Slacker: calmer steering
Chainstays
+6 mm
Longer: more planted

The two frames

We can't draw these frames yet. The Specialized Epic 29 World Cup Frameset numbers we have for size XL are missing the seat angle. The numbers below still compare.

Geometry side by side

MeasurementSpecialized Epic 29 World Cup Frameset XLTrek X-Caliber XLDifference
Reach465mm458−7 mm
Stack630mm620−10 mm
Head tube angle71°69.6°−1.4°
Effective top tube643mm659+16 mm
Chainstay length439mm445+6 mm
Wheelbase1157mm1165+8 mm
BB drop40mm53+13 mm
BB height332mm316−16 mm
Standover793mm825+32 mm
Seat tube length520mm521+1 mm
Head tube length140mm120−20 mm
Seat tube anglenot listed72.0°

Differences are the Trek X-Caliber minus the Specialized Epic 29 World Cup Frameset. Full charts: 2015 Specialized Epic 29 World Cup Frameset, 2017 Trek X-Caliber.

Where each sits in its class

Specialized Epic 29 World Cup FramesetTrek 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 29 World Cup FramesetS-Works 29 World Cup FramesetTrek X-Caliber7
ForkRockShox SID Worldnot listed
Rear shockFox Mini-Brainnot listed
Framenot listedTrek Alpha Gold
Shifternot listedShimano Acera M3000
Derailleurnot listedShimano Acera, Shimano Acera M3000
Cassettenot listedShimano HG20
Chainnot listedKMC X9
Cranksetnot listedShimano Acera M3000
Wheelsetnot listedFormula DC-20
Tirenot listedBontrager XR2
Hubnot listedFormula DC20, Formula DC22
Rimnot listedBontrager Connection
Brakenot listedShimano Acera M315
Seatpostnot listedBontrager SSR
Saddlenot listedBontrager Evoke 1.5

Know what is on every bike.

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

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