You are reading a single comment by @badmanlongtime and its replies.
Click here to read the full conversation.
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.
badmanlongtime
You will find filler on almost every mass produced aluminium and carbon frame at the junctions to smooth imperfections in the manufacturing process and make it look nice once painted .. it is the most economic method available.