Tyres
affter a while running with the catspaw treaded tyres I wanted to fit something akin to the original yokohama block pattern type, I eventually found them here
http://www.vintagetyres.com/
The rear is
Ensign Trials Universal 3.50 x 18
Front
Mitas Trial ET-01 2.75 x 21
other possibilities are Heidenau K67 ? but you wont get a 4.00 in the back? so you'd need to stick with 3.50
Pretty sure 'Kenda' do something like too but we cant get them easily in UK
Petrol tank cover and seat cover were both new old stock and you just dont see them often at all, they came from ebay
Tank cover is CEET an American firm
Seat cover is 'Chalks Racing'