Beauty collection of bikes you've got there! Im sure you'll be a geat help to the forum due to your mechanical knowledge... The NSR250 is such a nice bike, absolutlely immaculate from what i can see as well!
the best places to look are the following: Trials-forum classifieds ebay ( unfortunately now a sellers haven, with not that greater chance of finding a genuine bargain ) free ads
I hate fricking cornish weather! i havent had a good ride in weeks! and cos im still using tar...the ole ack brake is as near to lethal as it can get, as soon as the first spot of rain touches it.... I hope i get my koxx browns and a grind by then!
Try them: http://stores.ebay.co.uk/WVS-FASTENERS_MET...1QQftidZ2QQtZkm Hex bolts...but i couldnt find anyone that sold allen head bolts in that size....