14T, 15T, 16T, 17T, 18T, 19T, 20T. Weight : 13.1g (14T),19.4g (15T),25.2g (16T),31.7g (17T),38.0g (18T),45.5g (19T),53.0g (20T). Style: Bosch E-Bike. MPN: Bosch E-bike. Heat treated chromoly chainring for Bosch powered E-Bike.
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