Its a very good question, weren't later Big4s fitted with two tyre clamps so you could run low pressure's when off roading, a pressure gauge would be essential for getting it right and saving tyre life?

Rob

email (option): robmiller11(a)yahoo.co.uk

All Big 4's were fitted with 2 tyre clamps! my Dunlop made pressure guage is a No.6 and says 6-50 psi. and has the core removal tool in the end.

Cheers,

Lex

email (option): welbike@welbi**.net