Originally Posted by
garage sale GT
9 speed rear road hubs are 130mm wide whereas 7 speed were 126. It is easy to spread a steel frame apart and readjust the angle of the dropouts but an aluminum frame should not be spread.
+10 You have an aluminum frame with the dropouts spread to 126mm. You are taking a serious risk spreading an aluminum frame. If you want vintage but also 9 speed, find a good steel frame instead.