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Yes, Grin has its own custom motor designs.



Yes, and they are pretty bad. For the price of a Grin motor you can buy a much better, fully custom QS Motor with components and windings of your own choice, and have enough money left to buy a second one. The Grin motor will be slightly lighter but will also overheat earlier, so there's really no advantage - you can just get a smaller motor and push it harder. Nothing is free - Grin motors aren't really better than anything out of China and for the outrageous price they sell at you can literally get a motor custom made.




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