JACO pair of front wheels now feature a larger race legal diameter and a flanged bearings for higher corner speed, while the all new Prism rear wheel features a new larger size and a 3-mm Offset. This allows the hubs to mount closer to the center line of the wheel which helps the wheel run true. The new features will allow for the expansion of the rear pod to allow more room/easier access for brushless motors.
The best part is that less rubber on the wheel means lower retail price to consumers.
Mounting to vehicle