RE: Cox Reed Valve FAQ
Clint, I emailed Norvel that question one time. They didn't know. I don't have a copy of the email, but it was from someone at Sig. Justin? Anyway, the email stated flatly that Klotz is synthetic. Well, no it's not! It's a brand name that sells synthetic and castor. Another non-answer from someone who doesn't care. I would have expected better from them though.