Originally Posted by TCLGirls

I took the stock hub (160mm) out of the wheel and installed a narrower hub (130mm). I also had to buy different length spokes.

This is the new 2-speed internal gear hub I used:
http://www.amazon.com/SRAM-Automatix...dp/B00554464W/

And I used 254mm spokes. The Mongoose Beast wheel comes with 260mm spokes, which are too long if you change the hub.