Crankset for Redline rl20ii?

Flite 401's. Otherwise, It will look silly.

Flights are the best choice, but if its a rider you could always run new Flight IIs to save some cash and still have a similiar look...

Or you could run some era correct 1 piece cranks on the cheap....nice Suginos are easy enough to find for a good price, and I think they were oe on the 87-88 completes ?

go with the flights