Hope ones are M10 x 35mm as per tartybikes here: http://www.tartybikes.co.uk/steel_bolts/tartybikes_replacement_steel_bolt_single/c523p10568.html
@coventry_eagle started
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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Hope ones are M10 x 35mm as per tartybikes here: http://www.tartybikes.co.uk/steel_bolts/tartybikes_replacement_steel_bolt_single/c523p10568.html