Hi,
I didn't mean swap them for other goods, I meant swapping for other numbers ;-)
I have two 3's and a 5, I would swap one of my 3's
The list (not mine, I copied and pasted it) :
The numbers are for various different mounts and rotor sizes. If my memory serves me correctly they are the following:
1 - Hopes own standard, designed for the original line of Hope brake adaptors
2 - Rear calliper for frames without disc mounts. Used to use a shortened axle
3 - International Standard, 51mm spacing. Front 185mm rotor, rear 165mm
4 - Might of been 48mm Marzocchi Standard
5 - International Standard, 51mm spacing. Front 165mm rotor, rear 145mm
6 - Boxxer Mount 205mm Rotor
8 - International Standard, 51mm spacing. 205mm rotor front
9 - Manitou/Post Mount. Early models were 71mm I think, then Manitou changed it around 2000 to the current 74mm standard.
WD