Originally Posted by
bigvegan
You don't need 50mm tires. Try putting 28s or even 32s/35s if they'll fit on your road bike, and go from there.
If you've got decent wheels, they'll hold up to a fair bit of abuse.
You're...suggesting the OP run *smaller* tires??
Originally Posted by daven1986
Yeah I was thinking that, although I run 35 at the moment. I think I can probably fit a 40 or 45 in there (although maybe not under my mudguards!). Not sure if they will run at a low enough pressure to make much of a difference though (I run my 35 at 50psi).