72 and have been riding fixed since 2008. Just completed a 70s bike boom conversion to SS as I already have a fg. The gearing is 42x17...it's a little light on top so I'm going to go to 46x17 as I've got an old Origin8 chainring. The victory for me in this build is using the old single pivot calipers and finally figuring out how to set them. lol I used to just automatically get dual pivot calipers because the singles were such a pita to set. I've cracked the code! Cheers from New Zealand! 🇳🇿