Originally Posted by
fietsbob
need enough QR axle to hold up the frame, may need to swap in another axle , then.
Sheldon thinks it's
OK.
Overall axle length for quick release hubs is commonly 11 mm longer than the over-lock-nut distance listed, 5.5 mm on each side.
In practice, the axle can be quite a bit shorter than this...even 1-2 mm protrusion past the lock nuts will suffice to locate the axle properly, so, when converting a hub to the next wider spacing, it is usually un-necessary to replace the axle.