Made from an advanced homopolymer, these allow the spring to rotate with minimal friction, which allows the spring to respond more consistently throughout its stroke. This ultimately leads to improved grip. CNC machined to high tolerances and laser etched to identify the size.
Adapters reduce the ID (Inside Diameter) from 38mm down to either 36mm or 35mm.
Spacers are used as a low-friction surface when fitting a spring to a shock where adapters are not required.