Wheels Manufacturing Sealed Cartridge Bearings 686 - 6 x 13 x 5mm

- High quality steel cartridge bearings for a high quality repair
- Where most bearings available after market are grade 300 (up to 3/10 of a millimetre out of round, the equivalent of a human hair), Wheels Manufacturing produce a much higher grade steel bearing that's found in high-end Shimano and Campagnolo hubs and other high-grade components
- Heat treated steel races and sealed for longevity
- Grade 25 refers to the roundness where these bearings can be up to25/1000 out of round; 1200%higher quality than low-end bearings
- These bearings increase the likelihood that your repairs have lasting quality results
- Come as a pair