Winter wheels and tires are for the InsanitEcart only.  Quickly swap out the wheels with winter tires for better traction in wet grass.
It allows your E-cart better turning on wet grass, frosty ground and snow, even summer can use too. 
Improve the cart climbing up and down hills performance.
Protect your golf course from damaging tire marks
Save your E-cart battery with better traction
keeps the cart and wheels cleaner and easier to clean with less contact with the grass and mud.