The Kyosho OT-4 parts bag features the ‘small’ King Pins as featured on the top of the c-hubs on the ZX, ZX-R and ZX-Sport.
The ‘small’ refers to their length (the LA-21 king pins located on the bottom of the c-hubs feature a smaller head but are longer).
The king pins are known to work loose, so depending on the material of the OT-16 knuckles it is recommended to add some PVA or CA glue (plastic) or locktite / red Tamiya thread lock (metal) to the thread of the knuckle. Please ensure the shaft of the king pin as well as any part of the hub carrier remains absolutely free of any glue or thread lock.
Alternatives
These alternatives exist for the OT-4 with its hex / wrench head.
- AE-54 (cross head)
- 92635 (hex socket)
