Hey Folks,

Thanks for the responses! I can include pictures tonight but here are some of the specs I should have included in my original question.

The bike is a 1986 Raleigh Technium 440. It has friction shifting with Shimano "Z" series stem levers. The bike currently has a Suntour Perfect Freewheel, but some of the teeth have broke off the smallest cog. It is a 6 speed - so 6 cogs in the rear wheel. I am planning on replacing it with a new Shimano MF-TZ20, 6 speed, 14/28 teeth freewheel. The smallest cog has 14 teeth while the highest has 28 teeth (is this typically denoted as 14/28?). I plan to replace the old, rusted chain with a KMC Z51, 1/2 x 3/32 inch chain. Finally, the rear derailleur is a Shimano Z Series RD-Z503. My main concerns with it are that it looks old (very dirty and a little rust) and that the pulleys look worn down. As far as I can tell, it is not bent. I will post pictures this evening. That would be great if all it needs is a good cleaning!

Thanks again for the responses. I appreciate your help!