Duratrax Rustler/Stampede/Bandit Bearing Set (14-Piece) FEATURES: Bearings offer less friction than bushings for better acceleration, and higher top speed Chrome steel construction for maximum life Sealed f INCLUDES: Eight 5mm x 8mm bearings (2.5mm thick) Six 5mm x 11mm bearings (4mm thick) COMMENTS: To clean bearings, use DTXC2458 Power Shot Cleaner WL