[Jon Jack]

In 2012 we ran a single row of rivets on the underside of the chassis siderail. When we were welding the chassis we noticed that there were a couple of areas where the siderail was not standing vertical and the top had pulled in slightly. This year, instead of running a single row of rivets, we put the rivets in a 'zig-zag' pattern and the issue went away.

Normally we run 22T sprockets so that the chain clears the chassis cross member. With this year's chassis not needing a cross member we went with 16T sprockets and had no trouble with them all year. Tensioning is huge with 25 chain, even more so IMO than alignment. In the 8 years we've used 25 chain, the only time we've had an issue with throwing chains was when the chain was not properly tensioned.