I have one on my series 51 shelby flyer! nice to pedal but needs time for brakes to kick in.. good thing i have drum on front!

I've not had very good luck with these hubs. After my first one started shifting itself, and making complaining noises when I eased into the coaster brake I contacted my retail merchant, who got hold of Sturmey and they provided new innards. After the rebuild, going on two weeks of daily riding, it's once again shifting itself when coasting or going over a bump.

Anyone else have similar experiences?

Phil B

I've been through some turmoil regarding this hub. We tried to replace it with something similar, but found the current availability of the SRAM automatic 2 speed was limited to non-coaster brake models. After tossing it about for a compromise I decided I want what I want, and have them replacing it with another S2C.

We were on the third innards replacement at the point of my realizing the hub was useless. The hub was lacking any reliable sense of unreliability. You just didn't know what gear it would end up in. It became an issue, particularly in traffic being unable to hear the clicking.

I will be looking for a Bendix or something similar eventually I think, but for now am anticipating the next wheel with new hub.

Phil

Thanks very much for the feedback Phil!! Always good to make sure experiences get shared around!!

I do have a few friends running Duomatics with good results, though you've got to look for vintage hubs. They did make a TON of 'em though so you can find NOS ones fairly often.

Thanks for the encouragement. The hubs I've been dealing with are the Sunrace 2010 vintage.

I didn't realize SA built a Duomatic prior to 2010. I wonder how much difference being in the States makes? Distribution could have been different north of the border. Bendix was the most popular kick-back when I grew up.

Phil

The Duomatics I've seen around are all built by Sachs - didn't really realize SA had reused the name for the S2C!

http://hubstripping.wordpress.com/torpedo-duomatic-fs/