Are you sure you'll have room width-wise? 700c x 25/28c suggests stays that may ben too narrow for 650b tires (of which "skinny" is still 38c).
@JVBulman started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
Are you sure you'll have room width-wise? 700c x 25/28c suggests stays that may ben too narrow for 650b tires (of which "skinny" is still 38c).