25-35NM for 36v 250W 350W 500W. 320 for 36V 250W 350w. These charges are the buyers responsibility. Your satisfaction is our top priority and we are confident that you will be pleased with our services. The item "Electric bike Conversion Kit 36V 250W 350 500W Brushless gear Motor Wheel 20-29" is in sale since Thursday, January 21, 2021.This item is in the category "Sporting Goods\Cycling\Bicycle Components & Parts\Electric Bicycle Components". The seller is "lightinbike18" and is located in xiamen. This item can be shipped worldwide.