RC MAKER 5016 - Shorty Battery Weights Set (40g) (2) (Option) SP1/SP1-F Option Parts With the thread in the

With the thread in the top weight

The interval between a complete replacement of the bearings depends on how much you generally drive

it has been proven to enhance the car performance on all surfaces and grip levels

These can be found - as well as the product instructions - on this page:

RC MAKER 5016 - Shorty Battery Weights Set (40g) (2) (Option) SP1/SP1-F Option Parts With the thread in theOptional Shorty Battery Weight Set (40g) for RC MAKER SP1 This optional Shorty Battery Weight Set adds weight down low right next to the battery. This is required when using shorty batteries, to ensure that there is enough weight on the battery side to balance the car. Each weight is 40g, so this adds a total of 80g down nice and low at each end of the battery. The original carbon hooks sit on the top of the weight to hold the battery. The weights