Traxxas 5223 Engine Bearings, 7x17x5mm, 12x21x5mm (TRX 2.5, 2.5R, 3.3)

Ball bearings, 7x17x5mm (1)/ 12x21x5mm (1) (TRX® 3.3, 2.5R, 2.5 engine bearings) Ball bearings, 7x17x5mm (1)/ 12x21x5mm (1) (TRX 3.3, 2.5R, 2.5 engine bearings)