Cam chain pin dia.

Posted: Fri Oct 15, 2021 1:25 am

I've been searching for the discussion(s) about various pin diameters, P/Ns
brands and sources and I can only find everything but what I'm looking for. Confused

Anyone have a link ? Thanks.

Bob

Posted: Fri Oct 15, 2021 2:59 am

I think we mostly have info on the rivetted pin's heads, not the actual pin diameter.

Here's some info you might not have seen:

https://www.cb1100f.net/modules.php?name=Forums&file=viewtopic&p=477917#477917

https://www.cb1100f.net/modules.php?name=Forums&file=viewtopic&p=570412#570412

Posted: Fri Oct 15, 2021 5:11 am

Thanks Gene ! I knew you would find it. Lots of reading
but worth going through all of it. I bought the Morse-Borg-Warner chains for my CBX project. I started thinking about why the change to 2.7 pins ? I've never seen a pin break, only the plates and only at the ends,
the weakest point where the pin hole is. By reducing the pin size, more surface area around the smaller hole = a stronger plate. This was confirmed by... you know who.
Conclusion : The 2.7mm pin is a better chain, not a compromise.
M too of course.