【High Quality】:The Premium Bearings Lubricated with Grease, Chrome Steel 52100 (GCr15) ABEC 3 Precision Races, Hard Chrome Steel 52100 (GCr15) Balls guarantee that our bearings will not only last longer, but will run smoother.
【Easy to Install】:The RC Hops Up can be directly installed to replace the old or broken differential,do not need any modification.
【Kindly Reminder】Please stick screw glue on any metal-to-metal joint to make the product more stable.Especially in the position of various screw holes.So that the screw is not easy to be separated from the upgrading fittings.