Quiver

2018 Trek Procaliber 9.8 SL vs 2019 Trek X-Caliber

The Trek X-Caliber size closest to your ML is the ML. Compare the ML instead

What changes on the Trek X-Caliber

Compared with the Trek Procaliber 9.8 SL in ML, the Trek X-Caliber in XL places the top of the head tube 33 mm higher and 37 mm further forward, relative to the bottom bracket. Its wheelbase is 56 mm longer, which can contribute to stability at speed.

Frame stack
+33 mm
Higher front end
Frame reach
+37 mm
Longer frame reach
Wheelbase
+56 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 9.8 SL numbers we have for size ML are missing the seat angle. The numbers below still compare.

Geometry side by side

MeasurementTrek Procaliber 9.8 SL MLTrek X-Caliber XLDifference
Reach427464+37 mm
Stack595628+33 mm
Head tube angle69.5°69.3°−0.2°
Effective top tube617655+38 mm
Chainstay length435438+3 mm
Wheelbase11131169+56 mm
BB drop5858±0 mm
BB height311316+5 mm
Standover764751−13 mm
Seat tube length445521+76 mm
Head tube length90120+30 mm

Differences are the Trek X-Caliber minus the Trek Procaliber 9.8 SL. Full charts: 2018 Trek Procaliber 9.8 SL, 2019 Trek X-Caliber.

Where each sits in its class

Trek Procaliber 9.8 SLTrek 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 9.8 SL9.8 SLTrek X-Caliber7
FrameTrek SuperTrek Alpha Gold
ForkRockShox SID RLnot listed
ShifterSRAM GX EagleShimano Acera M3000
DerailleurSRAM GX EagleShimano Deore M4020, Shimano Acera M3000
CassetteSRAM GX EagleShimano HG200
ChainSRAM GX EagleKMC X9
CranksetSRAM StyloShimano Acera MT210
Bottom bracketTrek PF92not listed
WheelsetBontrager Kovee Elite 23not listed
TireBontrager XR2 Team IssueBontrager XR2
BrakeSRAM Level TLMShimano MT200
HeadsetFSA IS2not listed
SaddleBontrager Montrose EliteBontrager Arvada
Pedalsnot listedVP 536
Hubnot listedFormula DC20, Formula DC2241
Rimnot listedBontrager Connection

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