The Jazrider metal shielded ball bearing set offers a practical, serviceable upgrade for TAMIYA models such as Lunch Box, Grasshopper, Mod Fighter and Mad Bull. These shielded bearings are intended to reduce rotational resistance and slow wear on rotating assemblies without altering original mounting geometry.
Install the bearings where the original sizes match: wheel hubs, idler shafts and other rotating points that accept 5 x 8 x 2.5mm or 5 x 11 x 4mm bearings. The metal shields provide basic protection from debris while allowing inspection and light maintenance.