Machined in Europe with ultra precision in high quality Delrin for an extreme efficiency and ultra low friction. Specially designed for the cars with 4-screws spur gear holder:
-Tamiya
-Hot Bodies
-HPI
-Team Magic 3 belts cars E4JR/E4JS/E4D/E4RS
-TOP Racing
-3 Racing
-Schumacher
-Yokomo