Chain Tensioner Alfine BLK (ct-s500)
Chain Tensioner Alfine BLK (ct-s500) is backordered and will ship as soon as it is back in stock.
SHIMANO ALFINE - Double Pulley - Chain Tensioner
Perfect for SHIMANO ALFINE equipped bicycles, the double pulley chain tensioner can accommodate a front chainring difference of 16 teeth and sprockets sized 18 to 20 teeth.
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