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The dual ventilation and rear sizing adjustment will keep you comfortable while riding your eBike all day long
and loose gravel while maintaining responsive handling on mixed surfaces
Experience powerful acceleration and smooth gear changes
Free CST tires included
Powerful Motor: 1000W Bafang Ultra Mid-drive Motor for extreme off-road performance
Ultra Motor 1st Reduction Gear Version:V2 The dual ventilation and rearThe 1st reduction gear is a critical internal component for Ultra M620 motor systems. This high quality gear is engineered for precision motor rebuilding and repair applications, ensuring reliable power transmission and optimal performance. Designed to exacting specifications, it helps restore your motor to factory standards and extends operational lifespan. Essential for technicians and enthusiasts performing comprehensive motor maintenance or
