AIUI 0.9 mm is the accepted minimum but 1.00 mm seems like a good rule of thumb.
Minimum Rim Wall Thickness
Re: Minimum Rim Wall Thickness
When the pestilence strikes from the East, go far and breathe the cold air deeply. Ignore the sage, stay not indoors. Ho Ri Zon 12th Century Chinese philosopher
- Chris Jeggo
- Posts: 577
- Joined: 3 Jul 2010, 9:44am
- Location: Surrey
Re: Minimum Rim Wall Thickness
+1.
Nowadays the braking surfaces are machined whereas previously the rim extrusions were used with only tidying of the joint if necessary. So rim walls used to be thicker and much more uniform than they are now, but the ends needed to be joined more accurately when the circle was formed (but they weren't always).