quick update: after answering this yesterday i've been thinking about it so had a play. You can run 32's but there're two limiting factors:
You need a halflink chain so you can be a bit more accurate with axle placement, and with your chain tight the axle needs to be about 3/4 of the way down (i.e away from the bike) the dropouts. This gives you just enough room to get the wheel off and on... clearences aren't the problem, it's removing the wheel for punctures etc.
quick update: after answering this yesterday i've been thinking about it so had a play. You can run 32's but there're two limiting factors:
You need a halflink chain so you can be a bit more accurate with axle placement, and with your chain tight the axle needs to be about 3/4 of the way down (i.e away from the bike) the dropouts. This gives you just enough room to get the wheel off and on... clearences aren't the problem, it's removing the wheel for punctures etc.
Hope this helps