Quiver

2017 Trek Procaliber SL Frameset vs 2019 Trek X-Caliber

The ML is the Trek X-Caliber size closest to your ML Trek Procaliber SL 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 Trek Procaliber SL Frameset in ML, the Trek X-Caliber in ML places the top of the head tube 5 mm higher and 5 mm further forward, relative to the bottom bracket. Its wheelbase is 13 mm longer, which can contribute to stability at speed.

Frame stack
+5 mm
Higher front end
Frame reach
+5 mm
Longer frame reach
Wheelbase
+13 mm
Longer: steadier at speed
Head angle
−0.2°
About the same head angle
Chainstays
+3 mm
Longer: more planted

The two frames

We can't draw these frames yet. The Trek Procaliber SL Frameset numbers we have for size ML are missing the seat angle. The numbers below still compare.

Geometry side by side

MeasurementTrek Procaliber SL Frameset MLTrek X-Caliber MLDifference
Reach427432+5 mm
Stack595600+5 mm
Head tube angle69.5°69.3°−0.2°
Effective top tube617614−3 mm
Chainstay length435438+3 mm
Wheelbase11131126+13 mm
BB drop5858±0 mm
BB height311316+5 mm
Standover764737−27 mm
Seat tube length445444−1 mm
Head tube length9090±0 mm

Differences are the Trek X-Caliber minus the Trek Procaliber SL Frameset. Full charts: 2017 Trek Procaliber SL Frameset, 2019 Trek X-Caliber.

Where each sits in its class

Trek Procaliber SL 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.

PartTrek Procaliber SL FramesetSL FramesetTrek X-Caliber7
FrameTrek SuperTrek Alpha Gold
Bottom bracketTrek PF92not listed
HeadsetFSA IS2not listed
Shifternot listedShimano Acera M3000
Derailleurnot listedShimano Deore M4020, Shimano Acera M3000
Cassettenot listedShimano HG200
Chainnot listedKMC X9
Cranksetnot listedShimano Acera MT210
Pedalsnot listedVP 536
Tirenot listedBontrager XR2
Hubnot listedFormula DC20, Formula DC2241
Rimnot listedBontrager Connection
Brakenot listedShimano MT200
Saddlenot listedBontrager Arvada

Know what is on every bike.

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