Overview
- At least five sprockets with a single tooth jump for smoother progression.
- The 10-tooth starting sprocket allows for a wider range of ratios.
- Designed to mount on the XDR freewheel body.
- MINI CLUSTER construction reduces weight and increases durability.
- Use: racing bike.
- 12 speeds.
- Materials: steel and aluminium.
- Combinations: 10,11,12,13,14,15,17,19,21,24,28,33.
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