Hong Nor Cup Lighter Weight RC Diff Cup - X1S-39 Transmission Skid Guard keeping your RC car running

keeping your RC car running as it should after hard use

restoring the rear wing assembly after crash damage or general wear

Compatible HPI Racing RC vehicle (verify fitment against your model's parts diagram before ordering)

Joker (SCAG1155M) is a slot car set that gives you everything to start racing out of the box

Hong Nor Cup Lighter Weight RC Diff Cup - X1S-39 Transmission Skid Guard keeping your RC car runningThe Hong Nor X1S 39 is a lightweight diff cup designed as a spare or replacement part for the Hong Nor X1S competition RC car. Diff cups are a wear item in any serious RC racing setup, and having the correct replacement on hand keeps your X1S running without unnecessary downtime between sessions. The reduced weight of this diff cup compared to a standard unit is a genuine functional difference, lowering rotating mass in the drivetrain. Key Features