Having left the Uk in 1957 I did not keep track? of theswitch in Brit land from the old hub rim spoke count 40x32 to the Continental 36x36 style count. I do know that even in the late 40s and 50s 36x36 was been used by some Brits. BUT WHEN did they all switch and WHY? THEY STILL DRIVE ON THE OTHER SIDE OF THE ROAD! Cheers John Crump OldneverdidswitchBrit. Parker Co USA