Built with Swiss precision parts and bonded with with an extremely hard 'Ti-Nite' ceramic coating these Moto Premium Swiss bearings feature the industry's only 'oil-thru' shields. This means that the lubrication applied reaches all internal parts ensuring that friction is reduced for a super smooth glide. The 'Ti-Nite' coating process hardens the running surfaces and improves durability and again provides a reduction in friction and an increase in roll. In addition to the technical properties given by the 'Ti-Nite' coating, it also gives a 'rainbow-like' colouring which is unlike any other and instantly recognisable.