Sounds like bollocks! A new bearing is a new bearing, and as dickie says should as smooth as a smooth thing from new, you dont have to run ball races in.
+1
@ugosantalucia 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.
Sounds like bollocks! A new bearing is a new bearing, and as dickie says should as smooth as a smooth thing from new, you dont have to run ball races in.