I have System-Ex which are supposed to be the same thing. I've swapped the bearings once on the rear. No troubles. Quite a few people have reported snapping the locknuts.
@hippy 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.
I have System-Ex which are supposed to be the same thing. I've swapped the bearings once on the rear. No troubles.
Quite a few people have reported snapping the locknuts.