HPI Racing 86220 King Pin Ball 7.8x4.8mm (4pcs) Cup Racer 1M

HPI Racing 86220 King Pin Ball 7.8x4.8mm (4pcs) Cup Racer 1M

This is a genuine HPI Racing pack of king pin balls in 7.8x4.8mm size, supplied as a set of 4 for the Cup Racer 1M. King pin balls are pivotal to smooth steering movement, letting the front suspension articulate freely.

Worn balls create slop and inconsistent steering, so a fresh set restores precise front-end feel. Each piece matches the factory originals exactly.

• Genuine HPI Racing replacement part #86220
• King pin balls, 7.8x4.8mm
• Pack of 4
• Fits the HPI Cup Racer 1M
• Restores smooth, precise steering movement