A positive toothed belt and toothed pulley belt drive kit for non slip drive, gears up the dynamo speed by 10% for charging at lower RPM, belt is designed to run in grease to prevent overheating, runs much quieter than the original sprockets and chain.
Kit is direct replacement for the two sprockets and chain.
Fits BSA A7 A10 & Ariel Huntmaster twins only, front small pulley is tapered bore. Suitable for Lucas E3L dynamos.
Does not fit Alton alternators, If you need a kit to fit an Alton alternator, please see our item eBay item number: 282928725490
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