I can tell you 1 main difference is the shock mounting hardware- 6mm on the Uzzi instead of the 8mm as on the SS. They should have opted for the 8mm bolts on a bike with this much travel IMO. 1 more thing to note is the angled seat tube of the Uzzi- you will not be able to drop your seat down as far as you could on the SS. I think for all intended purposes though you could get by using the Uzzi in the same manner you could the SS- hence the discontinuing of the SS.