Originally Posted by
thebird55
Hmm...... As best as I can measure it, it looks to be about 132 - 133. That's taken from the leading edge of the dropouts, a little up & forward from where the axle sits. (And while holding the bike up with one hand, measuring with the other, and peering under the panniers with flashlight in mouth.)
When I can get a hand with it, I'll just try to put the wheel itself in there.
I'd call it 135mm. Even if you have to spread the frame 3mm, that's only 1/8".
I built the wheel for my 86 Rockhopper @ 132-133 so I could stuff it in my 126mm spacing without undue effort.