65 FLH Primary Chain Tensioners

[Garym]

Has anyone had experience with either the "M6" or "Hydraulic" primary chain tensioners? They are both about the same price.
Thanks,
Gary

[Rooster]

Well since you asked "either" -"or", I can say I have the M6 in my Evo, and it's one of the best upgrades I ever did. I don't think the mechanics inside the primary chaincase has changed much from 1965 to the mid-'90s, so it should give you the same effect in the '65.
I have a friend who gets all the latest prototype products from Hayden to use on a trial basis, kind of a 'working R&D' arrangement between friends. He tells me the Hydraulic tensioner (the "125") is not near as effective. But these things can be subjective, I am neither endorsing nor debunking either product.

[Garym]

Thanks Rooster, this is the type of info I'm looking for!
Gary