Originally Posted by tandemonium
We were considering upgrading our 1970 Schwinn Twinn from single speed to multi-speed. The Twinn is coaster brake in back and center pull in front. There are no Qrs. Shimano's Nexus hub
http://bike.shimano.com/catalog/cycl...=1131371615095
has appeared in few posts. We would have a new wheel built for the hub as the oem wheel is in nearly perfect condition. Is the conversion difficult, and are there reliability issues? Any feedback on the sg-7r46 brake system?
I had the hub on a single bike and I liked it. I don't know how it would handle the load on a tandem! The roller brake that comes with the hub is not a very strong brake. Even on the single bike it would take very long to stop with just that brake. For a tandem, I would definitely get a rim brake as main rear brake and use the roller brake (maybe) as a drag brake.
Your tandem probably has horizontal dropouts or at least some kind of chain tensioner. Therefore it is well suited for the internal gear hub and the conversion is easy.
