ThisĀ  topic has been made to list differences between these two wheels to better inform new buyers which wheel is best for them. as IĀ understand and being no expert in the matter a higher voltage motor will deliver increased top speeds. I understand the 84v MSX comes with a 1600 watt hour battery pack while the 100v MSX comes with a 1240 watt hour battery pack thus reducing the range. I am particularly interested in top speed difference and i know that no one should be going this fast and it sho