is the rear sealed or unsealed?? if it's unsealed, sounds like you need to disassemble, clean and re-grease.
or could be dirty chain. or dead pedals.
@dogsballs 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.
is the rear sealed or unsealed?? if it's unsealed, sounds like you need to disassemble, clean and re-grease.
or could be dirty chain. or dead pedals.