TAMIYA 13mm Aluminum Ball-Race Rollers (Ringless) 15437

● A 13mm diameter machined aluminum roller that allows for a wider range of roller settings. ● A 520 bearing is embedded in the body to ensure smooth rotation. ● Compared to rollers with rubber rings on the outside, it does not slow down as much in corners. Another plus is that it is lightweight at about 1.7g for two bearings, less than half the weight of a 13mm roller ball bearing. ● Can be attached to all Mini 4WD cars, including Mini 4WD PRO. [Compatible] Type-3 Chassis Type-4 Chassis Type-5 Chassis ZERO Chassis FM Chassis Super-I Chassis Super-II Chassis Super FM Chassis Super TZ Chassis Super X Chassis Super XX Chassis Super TZ-X Chassis VS Chassis MS Chassis AR Chassis MA Chassis FM-A Chassis VZ Chassis