Originally Posted by KC007

QUESTION: is the Regina Extra freewheel a commonly used freewheel for old Campagnolo bicycles ? I may going a little OCD on this topic (but I prefer NOS Parts that are period correct, like the nineties era). For example, the late 80's and and early 90's Ritchey and Gary Fisher Mountain Bikes were sold in the shops with Shimano XT / XTR derailleurs / shifters, etc.