Ultra Motor 2nd Reduction Gear model version_Juggernaut Hub Duo Step-Over 2 Not sure of your version

Not sure of your version

ensuring optimal performance and safety

5" Long x 15

Simply place these washers between the range extender plate and the bike frame to reduce wobbling and ensure your Range Extender battery stays steady even when riding in the roughest terrain

Ultra Motor 2nd Reduction Gear model version_Juggernaut Hub Duo Step-Over 2 Not sure of your versionDirect replacement second reduction gear for the Bafang Ultra M620 motor systems. This precision engineered component restores optimal power transfer and torque delivery when wear or damage affects your motor's performance. Compatible with Ultra M620 equipped e bikes. Essential maintenance part for riders seeking reliable drivetrain function and extended motor lifespan.