My old rear Mavic CXP21 with RX-100 hub and a 9 speed HG cassette fit easily into my rear triangle. I think it had 4 threads left over at the ends.
I purchased a new rim and hub, Alex DR14 and Shimano Deore 8/9 hub. The spacing now is tight.
The wheel I purchased was wobbling so I took it back to REI to have them true it.
When I arrived the tech tells me that the rear triangle is 4mm out of true and that my rear spacing is tight. He says that it appears that it was originally designed for a 120mm or 127mm axle. I told him that I had no problems with my other wheel.
I read somewhere that rear forks should have a spacing as follows:
120mm for 5 speed
127mm for 6-7 speed
130mm for 8-9-10 speed
Am I missing something? Did I somehow manage to ride a 6-7 speed hub with a 9 speed cassette? Some how that does not seem possible.
Everything I bought is second hand so I do not have a history. I know that Sheldon says that the RX-100 is from 1997 and that 105SC was a 7 speed.
Confused and I do not have my axle so I cannot measure it.