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Chain tensioners Box two
Box Two chain tensioners for BMX: avoid derailments and ensure precise acceleration with easy adjustment.
Sold and shipped by Sport is good
The BOX Two chain tensioners are designed for wheels with 10mm axle and for classic frame dropouts. They prevent derailment during acceleration in BMX races. The 2 mounting holes and screw tension adjustment allow you to adjust the chain tension even more precisely with the control markings. CHARACTERISTICS :
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