Originally Posted by bluesteak

I started to work on the hopper, and have built wheels. I went with sun cr18 590 rims. I am working on the drivetrain now. The deraileur is stamped 3/32 5 speed, 1/8 4 speed. If I buy a 4 speed freewheel do I assume it will be for 1/8 chain? The other problem I am having is the bottom bracket only protrudes 1 inch on the drive side instead of 1.25 inches. What is with that? I will need to replace it to fit a “normal” chainring.

Any thoughts or advise would help.

Sorry to horn in on the 3 speed conversation, with deraileur questions.