Quiver

2013 Trek Superfly AL vs 2015 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 S places the top of the head tube 41 mm lower and 52 mm further back, relative to the bottom bracket. Its wheelbase is 61 mm shorter, which can contribute to quicker direction changes.

Frame stack
−41 mm
Lower front end
Frame reach
−52 mm
Shorter frame reach
Wheelbase
−61 mm
Shorter: quicker to change direction
Head angle
−0.3°
About the same head angle
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 SDifference
Reach433381−52 mm
Stack626585−41 mm
Head tube angle69.6°69.3°−0.3°
Effective top tube622560−62 mm
Chainstay length445438−7 mm
Wheelbase11271066−61 mm
BB height312306−6 mm
Standover784745−39 mm
Seat tube length483394−89 mm
Head tube length103100−3 mm
Seat tube anglenot listed73.0°
BB dropnot listed48

Differences are the Trek X-Caliber minus the Trek Superfly AL. Full charts: 2013 Trek Superfly AL, 2015 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-Caliber6
FrameTrek Alpha PlatinumTrek Alpha Gold
ForkRockShox Reba RL 29SR Suntour XCM
ShifterSRAM X7SRAM X4
DerailleurSRAM X-7SRAM X4
CassetteShimano HG62SRAM PG920
CranksetSRAM S1000Shimano Acera M371
WheelsetFormula DC51not listed
BrakeAvid Elixir 1Shimano Acera M355
HeadsetFSA NO.57SCnot listed
SeatpostBontrager SSRBontrager SSR
SaddleBontrager Evoke 1Bontrager Evoke 1.5
Chainnot listedKMC X9
Tirenot listedBontrager XR1
Hubnot listedFormula DC20, Formula DC22
Rimnot listedBontrager AT-650

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