[JamesCH95]

Originally Posted by jwfoss

There are a number of things that would cause #25 chain to fail. From proper tensioning to misalignment in the sprockets. Be careful with these things, but remember that although it is heavier, #35 chain is also more forgiving.

Came here to say this, #35 series chain is wonderfully tolerant, I wouldn't use anything else.

In 2011, and most other years for that matter, we used #35 size chain. We simply set our sprocket locations, made the chain as close to the right length as we could (sometimes using half-links), and were off to the races. No tensioning, no thrown chains, it proved to be very reliable.