This may sound like a stupid question but how do you measure the length of crank arms? Is it from the centre of the pedal mount hole to the centre of the BB mount hole? If not how do you measure it as I have to buy my son a shorter set of arms!!
He has AC MiniLE cranks fitted to his Proline Pitboss 16" and measured centre to centre of the holes they are 150mm. Searching on the net I see that AC MiniLE cranks go down to 100mm............................Any idea as to where I can buy these in the UK as all shops I've seen have been in the United States?
Thanks in advance
Scotty
