What the hell is boost
110mm * 15mm front 148mm * 12mm rear
New standards have to be introduced every few years or people don't buy new shit.
The beauty of Boost rear wheels is that it requires an offset chain-ring too!
@umop3pisdn 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.
What the hell is boost