Holdsworth always used 531...27.2 indicates that most probably it is 531 DB...I once had a Holdsworth plain guage path frame which took a 26.8mm seatpost....the lugs were no where as nice as this one.
@marxist_vulcan 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.
Holdsworth always used 531...27.2 indicates that most probably it is 531 DB...I once had a Holdsworth plain guage path frame which took a 26.8mm seatpost....the lugs were no where as nice as this one.