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London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
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@youcloudsofdoom
Hi guys, I've been looking at getting a decent old cinelli stem to go on a pinarello treviso I'm building up. One thing that I can't seem to find much info on is this: what is the difference between the cinelli stems (1A/1R/XA etc)? Is there a performance difference, or is it just cosmetics or a fitting difference? Cheers!