#428 Connector link
Master Link for the RK GB420 MXZ Gold on Gold Chain.
#420 Connector link made by Daido Kogyo, LTD.
10mm master link used on Trail Master and Hammerhead mini karts
Chain Offset Link (adds a half link) to any chain
When used be sure the open end of the clip is facing away from the direction of the chains movement.
#420 Connector link
#50 master link.