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The 12-speed Chorus cranks are a true concentrate of technology and versatility. It is technically advanced because it uses construction technology with one-way arrangement of carbon fibers.
- Factor Q 145.5. The space requirements and biodynamics of crankshaft rotation do not change.
- Crank arms made of unidirectional carbon fibers, internal steel bearing shaft and aluminum plates for high rigidity and optimal power transmission.
- Symmetrical teeth for the inner plate for smooth and precise transmission even in extremely diagonal chain guides.
- Optimized design for each combination of dishes.
- Double bolt circle.
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