In response to centering the wheel in back: First, put the wheel in the dropouts and tighten both axle nuts. You don't have to really muscle them on (yet,) just get them tight so they don't move around in the dropouts. Next, loosen (only) the drive side nut and push the front of the wheel laterally towards the chainstay. This will move the freewheel back, tightening the chain. When the chain tension is where you want it, (really) tighten the axle bolt. Now, loosen the non-drive side axle bolt and push the front of wheel laterally back so it's centered between the chainstays. Tighten the bolt, double check your chain tension, and off you go.
I hope my description makes sense. I learned that years ago from Sheldon Brown and it's one of my favorite bike mechanic tricks. Cheers- Mike in So. Boston, Mass -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To post to this group, send email to rbw-owners-bunch@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.