#86049 - BALL STUD 4.3x9mm (2mm SOCKET/4pcs) CUP RACER 1M Genuine HPI quality spare part for easy maintenance and repairs. See below for kit reference.
#86144 BALL 6.8x8x3mm (4pcs)
#75112 STEERING POST 4x33.5mm (2pcs)
#86417 BALL 10x12mm (4pcs)