
The 8-spline interface between the BB and crank arm forms a strong highly rigid connection that reduces weight and increases strength.
Hollow chromoly splined spindle with alloy non-drive side cup.
Weight: 250 grams
Two sizes 109.5 Spindle for double cranks; 118 for triple cranks.
5mm deep spline fits crank models 7700, 6500, 5500.
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