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Well you need this when you going brushless...or just keep the plastic spur so if anything goes wrong it will just shred up the spur that twisting the car https://youtu.be/45oMFSzdE1Y
Hello piece well arrived, excellent quality, more than to show it, thank you banggood and sinotrans.
perfect
Last piece of the puzzle arrived; now I can complete the brushless conversion on my 124019. My advice; if you go brushless, use these metal gears over the standard plastic ones. The will be destroyed by the surplus in power once on brushless system. And it is an easy install...
Fits on Surpass 3.125mm shaft with 4200k some press. But it fits. Worked well. gladly again
arrived before due date, I haven't fitted it yet but the quality looks very good.
Metal
Nice and very fast delivery, less than a week
ok
can’t wait to use them, should b much better and last longer then what come already in the car