The Race and Ergo Ultra pads are available in two thicknesses 5mm and 10mm allowing riders to tune the diameter for a snug fit. 

Features
Foam resists crushing for longer use
Improved surface durability
Superior grip with molded textured surface
Compatible with Ergo and Race armrest kits

Specifications
Foam resists crushing for longer use
Improved surface durability
Superior grip with molded textured surface
Compatible with Ergo and Race armrest kits

Mfr Claimed Weight
5mm: 21g / 10mm: 37g