Re: 415H O-ring Chain
Been doing more research and i've come up with a solution to the problem of finding a manufacturer that makes a 415H O-Ring chain for our motorised bicycles.
In Japan they sell a lot of specialised chains for small cc racing categories that we don't even know about, or even get to see the specifications on chain manufacturers english speaking websites.
I'm sure they would make a 410H O-Ring chain but as i can't read Japanese, the research side of things is almost impossible.
Photo attached of RK 415H O-Ring Chain
Other manufacturers would make a similar product but i haven't been able to find anything.