Cam chain tensioners

Beth hacktastic at
Sun May 17 11:16:20 PDT 2009

On Sun, May 17, 2009 at 10:59 AM, Randy Grein <randygrein at> wrote:
> Interesting! I'd think that there would be more loss with cam timing on a
> manual adjuster than the parasitic losses, but it just goes to show that
> analysis does not beat testing.

Rigorous testing, please. Many dyno runs. Same bike. I am doubtful
that there's truly a 2hp loss from using an automatic cam chain
tensioner. That seems like some serious drag on the cam chain and the


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