This is a good subject to do some test on. I have two RCGF engine's,20cc in service and broke-in, andone new. Also the same with a RCGF 26cc. Also a Dle, one broke in and one new. And the same with CRRC 55 twin's. I'll see if I can get with Mr. Bowman and get ring's for allfour new engine's and see what the difference between stock and new ring's are. How's that sound?
E-mailed Mr.Bowman.