Description
[This part is useful for improving the performance and settings of your machine]
This is used to replace the plastic bearing and gear shaft inside the counter gear set in the main chassis of the Mini 4WD PRO.
By incorporating a high-precision dedicated shaft and ball bearing, drive loss is further reduced and top speed is increased.
[Specifications]
Set of two 520 bearings and two 2 x 13 mm stainless steel shafts
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