Oh man sorry to hear about the pulley!! On a good note the tires worked out!Had my first chance at a good bash session since fitting the new tyres today - lots of WOT and the idler pulley on my belt drive melted??
Looks like the new bearing that I installed on the centre shaft seized.I'll know more when I get the plate off.
I've sent an email to see if I can get another.
At least it steers a lot better with the 60mm front tyres.