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Specialized Tarmac SL8 2024
Dolan GXA 2021 ×
Dolan GXA 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
Dolan
GXA 2021
48
51
54
56
58
Dolan
GXA 2020
48
51
54
56
58
Stack
mm
584
584
Reach
mm
387
387
Head tube angle
°
71.5
71.5
Seat tube angle
°
73.5
73.5
Chainstay
mm
430
430
Wheelbase
mm
1046
1046
BB drop
mm
71
71
BB height
mm
—
—
Standover
mm
—
—
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GXA · 54
GXA · 54
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Orbea Terra 2022
Near Dolan GXA · XS · 545 mm / 375 mm
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Orbea Terra 2023
Near Dolan GXA · XS · 545 mm / 375 mm
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Orbea Terra 2024
Near Dolan GXA · XS · 545 mm / 375 mm
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Cockpit for the selected size
Part
GXA 54
GXA 54
Stem
100 mm
100 mm
Bar
420 mm
420 mm
Crank
172.5 mm
172.5 mm
