Free geometry search — find bikes that fit like yours.
Browse bikes
Open menu
Bikes
Compare
Similar bikes
Brands
Saved
More
Glossary
Request a bike
Bikes
Compare
Similar bikes
Brands
Saved
Glossary
Request a bike
Compare
Loading compare…
Compare
Add bikes to compare
Specialized Tarmac SL8 2024
XDS Race 2021 ×
XDS Race 2020 ×
Overlay
Stack and reach
Bike geometry overlay
Wireframe side views of compared bikes aligned at the bottom bracket. Hover a frame to isolate it, or a measurement to see it drawn from its origin.
Some tubes use estimated defaults where OEM values were missing.
Geometry by size
Measurement
XDS
Race 2021
XS
S
M
L
XL
XDS
Race 2020
XS
S
M
L
XL
Stack
mm
548
548
Reach
mm
388
388
Head tube angle
°
73.0
73.0
Seat tube angle
°
73.5
73.5
Chainstay
mm
408
408
Wheelbase
mm
990
990
BB drop
mm
69
69
BB height
mm
—
—
Standover
mm
—
—
Copy compare link
Save on this device
Relaxed/Aggressiveness
More relaxed
More aggressive
Reach →
Stack →
Race · M
Race · M
Add a close match
Specialized Tarmac SL8 2025
Near XDS Race · 49 · 514 mm / 375 mm
Add to this compare
Specialized Tarmac SL8 2024
Near XDS Race · 49 · 514 mm / 375 mm
Add to this compare
Specialized Tarmac SL8 2026
Near XDS Race · 49 · 514 mm / 375 mm
Add to this compare
Cockpit for the selected size
Part
Race M
Race M
Stem
100 mm
100 mm
Bar
420 mm
420 mm
Crank
172.5 mm
172.5 mm
