This motor is meant to compete with popular 9" (9.25") models from other producers. Despite having a 10.5" diameter, it is much shorter and 6-7kg lighter than the competition. It can handle 270A continuously (hence has more torque and power) while being competitively priced. Interpoles are standard for this model hence nominal battery voltage can be as high as 160-170V or even 192V when overspeeding protection is used.