Heavy Hitter 420 Primary O-Ring Chain Drive Conversion Kit electric offroad bike we have designed the linkage

we have designed the linkage to have 4mm of top out stop

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Easy to Install and Stable：This bicycle turn signals front and rear can be mounted on different types of bikes and scooters and feel free to install in any position

Made in USA

ISO Width (mm): 97

Heavy Hitter 420 Primary O-Ring Chain Drive Conversion Kit electric offroad bike we have designed the linkageImportant Notice: When installing, make sure your chain tension is not tight! Any chain drive that you install should have loose chain tension! Please check the fitment tab for important motor info. The Heavy Hitter Primary Drive Conversion Kit was designed for those wide open throttle riders who just keep snapping belts. Why the Heavy Hitter kit is the best? Replacing a belt drive with a chain drive will lower the bike's efficiency, which in turn