The problem I experienced didn't seem to be related so much to the tooth thickness but the thickness of the bolt holes on the spider and the ring. The combination created a bit too much space between the two inside rings. Somehow it seems that my sugino crank only wanted to work with sugino rings. Similarly the DaVinci cranks (mfg by White Ind.) on our tandem seems to work better when I got an NOS set of White rings.
Michael On Monday, October 15, 2012 10:48:30 AM UTC-4, Jan Heine wrote: > > On Oct 15, 5:49 am, Michael Hechmer <mhech...@gmail.com> wrote: > > I have had chain suck when I mixed shimano or shimano standard rings on > a > > sugino crank. > > A lot of inexpensive chainrings are made to somewhat loose tolerances. > If your teeth are too thick, then the chain will stick once in a > while. With 10- or 11-speed, the tolerances here are +/- 0.005 mm, and > few of today's smaller makers can meet those demands. With Sugino > moving the production of their less expensive cranks to China, I would > not be surprised if their quality also had taken a further nosedive. > > Before we found a good supplier for the chainrings of our new Rene > Herse cranks, we had to measure a lot of chainrings. (We even made a > gauge so we didn't have to measure each tooth separately.) We were > surprised by the variability that some makers had in their tooth > thickness. > > Jan Heine > Compass Bicycles Ltd. > http://www.compasscycle.com > > Follow our blog at http://janheine.wordpress.com/ > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To view this discussion on the web visit https://groups.google.com/d/msg/rbw-owners-bunch/-/DOKQGhPyUlEJ. To post to this group, send email to rbw-owners-bunch@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
