Quiver

2018 Trek FX Disc vs 2018 Salsa Warbird Carbon

The 55 is the Salsa Warbird Carbon size closest to your M Trek FX Disc. 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 Salsa Warbird Carbon

Compared with the Trek FX Disc in M, the Salsa Warbird Carbon in 55 places the top of the head tube 12 mm higher and 12 mm further back, relative to the bottom bracket. Its wheelbase is 32 mm shorter, which can contribute to quicker direction changes.

Frame stack
+12 mm
Higher front end
Frame reach
−12 mm
Shorter frame reach
Wheelbase
−32 mm
Shorter: quicker to change direction
Head angle
±0.0°
About the same head angle
Chainstays
−15 mm
Shorter: livelier

The two frames

We can't draw these frames yet. The Trek FX Disc numbers we have for size M are missing the seat angle. The numbers below still compare.

Geometry side by side

MeasurementTrek FX Disc MSalsa Warbird Carbon 55Difference
Reach389376.6−12 mm
Stack555567.3+12 mm
Head tube angle70.5°70.5±0.0°
Effective top tube548550+2 mm
Chainstay length445430−15 mm
Wheelbase10571024.7−32 mm
BB drop6270+8 mm
BB height285not listed
Standover735771.6+37 mm
Seat tube length444520+76 mm
Head tube length130140+10 mm
Seat tube anglenot listed73
Fork lengthnot listed405

Differences are the Salsa Warbird Carbon minus the Trek FX Disc. Full charts: 2018 Trek FX Disc, 2018 Salsa Warbird Carbon.

Where each sits in its class

Trek FX DiscSalsa Warbird Carbon

AggressivePositionUpright
CalmSteeringQuick
PlayfulBalancePlanted

Each bike is ranked against the other gravel 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 FX Disc2 DiscSalsa Warbird Carbon
FrameTrek FX Alpha Goldnot listed
ShifterShimano EF500not listed
DerailleurShimano Tourney TY71, Shimano Acera M360not listed
CassetteShimano HG31not listed
ChainKMC Z7not listed
WheelsetFormula DC-20not listed
TireBontrager H2not listed
HubFormula DC20, Formula DC22not listed
RimBontrager Connectionnot listed
BrakeTektro M280not listed
SeatpostBontrager SSRnot listed

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