Quiver

2012 Trek Superfly AL vs 2014 Trek X-Caliber

The Trek X-Caliber size closest to your 19" is the ML. Compare the ML instead

What changes on the Trek X-Caliber

Compared with the Trek Superfly AL in 19", the Trek X-Caliber in XL places the top of the head tube 6 mm lower and 25 mm further forward, relative to the bottom bracket. Its wheelbase is 26 mm longer, which can contribute to stability at speed.

Frame stack
−6 mm
Lower front end
Frame reach
+25 mm
Longer frame reach
Wheelbase
+26 mm
Longer: steadier at speed
Head angle
−1.4°
Slacker: calmer steering
Chainstays
−7 mm
Shorter: livelier

The two frames

We can't draw these frames yet. The Trek Superfly AL numbers we have for size 19" are missing the seat angle. The numbers below still compare.

Geometry side by side

MeasurementTrek Superfly AL 19"Trek X-Caliber XLDifference
Reach433458+25 mm
Stack626620−6 mm
Head tube angle71°69.6°−1.4°
Effective top tube617659+42 mm
Chainstay length452445−7 mm
Wheelbase11391165+26 mm
BB height325316−9 mm
Standover788825+37 mm
Seat tube length483521+38 mm
Head tube length125120−5 mm
BB dropnot listed53

Differences are the Trek X-Caliber minus the Trek Superfly AL. Full charts: 2012 Trek Superfly AL, 2014 Trek X-Caliber.

Where each sits in its class

Trek Superfly ALTrek 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 Superfly AL100 ALTrek X-Caliber4
FrameTrek Alpha PlatinumTrek Alpha Gold
ForkFox EvolutionSR Suntour M3030
ShifterSRAM X7Shimano Altus EF51
DerailleurSRAM X-7Shimano Altus, Shimano Altus M280
CassetteShimano HG62-10Shimano HG31
CranksetSRAM S1000Shimano M131
WheelsetBontrager FCCFormula DC-20
BrakeAvid Elixir 1Trek HL 280
HeadsetFSA NO.57Enot listed
SeatpostBontrager SSRBontrager SSR
SaddleBontrager Evoke 1Bontrager Evoke 1
Tirenot listedBontrager XR1
Stemnot listedBontrager Approved

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