Have you tried scraping it? If its soft it might be some sort of wax which will clog up pads. Try a blade and see if it will scrape off before going at it with chemicals?
yeah, I have - with a little success but also with damage to the wood
@gillies 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.
Have you tried scraping it? If its soft it might be some sort of wax which will clog up pads. Try a blade and see if it will scrape off before going at it with chemicals?