can spacers be added to a dura ace hub to make it a 135 spacing for a modern hybred frame? i see alot of dura ace hubs on e bay, but not to many xt 36 hole , also i want a 730 xt front hub but they are hard to find also .....any ideas where i can locate a 730 xt front hub 36 hole? thanks 29erRick. RIDE SAFE!