Spec-R Yokomo 40T gear diff
Spec-R have released the new version of their 40T gear differential for the Yokomo BD5. Made with a lightweight plastic housing, nylon gears, long-life diff joints, it includes the new 0.2mm internal shim and X ring. Benefits of running this type of differential is the reduced maintenance, lack of slipping and that the setting remains unchanged during the race.
Source: Spec-R [spec-r.com]