Originally Posted by Mouton
I would be very careful about your chain tension. I ran a bike just the way you described and managed to ruin a few cheap hubs when my chain was just loose enough to catch a tooth on the next larger cog, causing a lot of binding and odd force on the wheel. Other than that it was pretty convenient.
Thanks for explaining that. I had something like that happen on my first "test ride". When I stopped to see what was going on, I noticed that the rear wheel had pulled forward, and was "off" line, likely pushing the chain up against the next cog.
So, I pulled the wheel back into "proper" alignment, and really cranked the quick release down hard. And, I'll recheck the chain tension and wheel alignment on a regular basis.
This frame has the 126mm spacing used in the '80's for six speed and seven speed freewheels. Is there a BMX cog that would screw onto my hub and have the correct spacing for a 126mm frame?