Hayden M6 Primary Chain Tensioner For Harley Big Twin

Instead of constantly re-tensioning your primary chain and trying to decide whether you should be on a tooth that's "too tight" versus one that's "too loose", why not keep constant, even tension on your chain with Hayden's M6 units? These tensioners keep your chain tensioned right all the time - automatically!

Features:

• Improves shifts
• Reduced shift "clunk"
• Extends primary chain life
• Made in the USA
• Increases the life of compensator units