Originally Posted by
Jicafold
Sorry. Sorry. It is a Dura Ace. I would consider removing that large spacer in there and recentering but then I am concerned the axle would be too long.
just checked a spare DA freewheel hub... 36mm from FW thread shoulder to outside of locknut... 25mm from seal face to outside of locknut.
plenty of room for a 7sp. freewheel on it... overall axle length is 137mm, overall... 126mm OLD.
add any width remaining to achieve your desired OLD to the NDS end of the axle
stack... axle cone/1mm washer/inner 3mm locknut/10mm spacer, outer 6mm locknut with serrated flange out.
this is an old slotted style axle set.. 1mm washer is tabbed to the slot.
the idea is to make the drive side spokes angle in as much as possible, and also maintain the chainline of the freewheel, yet provide clearance for the chain while it's on the small sprocket of the freewheel.
a properly set up rear axle/hub will allow swapping to another wheel with minimal, or NO readjustments, to the rear derailleur.
i did such swaps fairly often with my DB Ascent bike... literally zero adjustments needed.
QR bare axle protrusion beyond the outer locknut is typically 4.5 to 5.5mm.