ESSFW-18T FREEWHEEL SINGLE SPEED FINISH: BROWN/BLACK/CP
ECW-04 OPC CHAINWHEEL TEETH: 28/32/36/40/44/46T
ECW-11 OPC CHAINWHEEL TEETH: 36/40/44/46T
ECW-29 OPC CHAINWHEEL TEETH: 36T
ECW-09 OPC CHAINWHEEL TEETH: 28/32/36/40/44/46T
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