Home Products Chainring parts P/No: LS-91 CNC: Road Chainring LS-91 CNC P/No: LS-91 CNC: Road Chainring Road Chainring:P/N: LS-91 CNCBCD: 130, 135mmChainring: 38, 39, 40, 42/48, 50, 52, 53, 54, 55, 56, 58TSpeeds: 9~11s 1153744