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Specialized Tarmac SL8 2024
Bridgestone RB-1 2009 ×
Bridgestone RB-1 2008 ×
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
Bridgestone
RB-1 2009
51
54
56
58
Bridgestone
RB-1 2008
51
54
56
58
Stack
mm
572
572
Reach
mm
386
386
Head tube angle
°
74.0
74.0
Seat tube angle
°
73.5
73.5
Chainstay
mm
410
410
Wheelbase
mm
990
990
BB drop
mm
70
70
BB height
mm
—
—
Standover
mm
—
—
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Relaxed/Aggressiveness
More relaxed
More aggressive
Reach →
Stack →
RB-1 · 56
RB-1 · 56
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Trek Emonda SL 2022
Near Bridgestone RB-1 · 52 · 541 mm / 376 mm
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Trek Emonda SL 2023
Near Bridgestone RB-1 · 52 · 541 mm / 376 mm
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Trek Emonda SL 2024
Near Bridgestone RB-1 · 52 · 541 mm / 376 mm
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Cockpit for the selected size
Part
RB-1 56
RB-1 56
Stem
100 mm
100 mm
Bar
420 mm
420 mm
Crank
172.5 mm
172.5 mm
