I'm trying to build a rear wheel with a Sturmey Archer S2 kickshift hub. The hub I ordered has a 110 mm OLD; the frame I want to use has rear spacing of 120mm. I (wrongly) assumed that I could just put some spacers between the locknuts and the frame, and everything would be fine.
But when the hub arrived yesterday, it didn't fit in the frame. The outside diminsion of the frame is close to 150mm (it's an aluminum frame), and the SA axle is only about 155mm long--too short to tighten the axle nuts on the frame.
Is there any kind of axle extender or adapter I could use in this situation? If possible, I'd like to keep this hub and frame (and not pay any return shipping and restocking fees).
Or should I just eat the cost, learn a lesson, and start over?