Originally Posted by
daveboy46
I know this is an old post, but it's the closest thing I've found to resolving issues with my Shimano SG 3530 36 hole 3 speed hub on my old Schwinn. It now only shifts between hi and lo with no neutral. Looking for a spec sheet on this unit, possibly parts if needed, or a good interchange unit or a easy upgrade to make this old bike more efficient as well.
Thanks, Dave
You may want to post in the ISO "In Search Of" section above. You're more likely to get a helpful response. I have nothing to add, as I've never used one of those hubs. Best.