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Pair of chain tensioners Box Three
Choose Box Three chain tensioners for derailment-free acceleration when racing BMX.
Sold and shipped by Sport & Go
The chain tensioners BOX Three are designed for wheels with 10mm axle and for classic frame dropouts. They prevent derailment during acceleration in races BMX. The adjustment of tension by screw allow you a precise adjustment of the tension of the chain thanks to the control marks. CHARACTERISTICS:
