In updating an 80's Italian bike to index shifting, I've decided to replace the entire cockpit and then while growing impatient on finding an inexpensive quill stem that I like, I've gone threadless! I've just bought a nice little Cinelli Bianca stem on Ebay and I also have a set ITM bars coming. My main question right now is what is the purpose of spacers? Are they purely aesthetic or do they provide support also? I'm going to use a threadless adapter such as Profile Design or similar. Do these adapters offer any space to adjust handlebar height? My stem has a slight angle to it , 8 degrees - Are there any rules on going from quill to threadless if I want to keep the same general bar placement? I realize it's trial and error but just curious what most people know about this conversion other than they don't like threadless. Personally, I like both, depending on the design. It's just with threadless, there are so many more options and it's much easier to swap out a stem or bars.
Thanks.