Chain when open: 520 ORS6 O-ringNumber of Sections: 114Lock: ClipOriginal Gear Ratio: 16/AluminiumSPROCKET Item No: 63.32051Chain wheel Item No: 64.1008Replacement gear ratio:Ritzel alternative number of teeth: 13/14/15/16/17Chain wheel alternative number of teeth: 36/37/38/39/40/41/42/45/46/47/48/49/50/51/52 (Aluminium Chain Wheel)
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