Nov 24, 2012
Chain retention devices don't come much neater, simpler or quieter than this. Optimised for dual or triple ring setups, the bionicon C guide is simple to fit and weighs only 20gms!
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Chain retention devices don't come much neater, simpler or quieter than this. Optimised for dual or triple ring setups, the bionicon C guide is simple to fit and weighs only 20gms!