Losi 22X-4 Buggy Bearing Kits - ProV2C Kit.
This car has the following Bearings:
3x6x2.5mm Bearings X 4 (Steering)
5x8x2.5mm Bearings X 4 (Steering)
5x10x4mm Bearings X 4 (2 Diff pinion, 2 Front hubs)
5x13x4mm Bearings X 4 (2 Front Hubs, 2 Rear Hubs)
8x14x4mm Bearings X 2 (Diff Pinion)
10x15x4mm Bearings X 8 (6 Diffs, 2 Rear Hubs)

Pro Racers V2C Kit – Complete Bearing Kit with V2 Premium Wheel Bearings, Ceramic Drivetrain Bearings
 
All bearings are available individually if you require more of a particular size.
Plaig Bearings are a stronger, more reliable bearing with greater heat resistance and superior life to the standard factory bearings.