The Bosch BDU2XX Drive Pinion Chainring are for Bosch mid-drive units.Bosch BDU2XX Drive Pinion Chainring FeaturesDirect Mount Type: Direct Mount Bosch Gen 2Bosch Drive Unit Compatibility: Active LineDesigned for eBike: YesBosch Generation Compatibility: BDU2XX
Best Price: £14.15 from Leisure Lakes Bikes