As above, does anyone know?

Thanks alot, Tony.

i dont know , which is not very helpful i know, you need to find out fork diameter.

normaly forks and yokes are bought, then the stem of the nc29 is put onto the particular yokes of the forks you want on the bike, meaning spacers are needed to run the 29 front, or the wheel for the forks hope this helps slightly.

Its ok mate, I decided not to use them...

Im just going to service my forks instead.

Thanks anyway. :D

Edit/ and for those that will use this in the future, I measured them and the 600 forks where 3 1/2 inches longer than the 400 forks...