After enough requests already, the 18" knock off wheels are now available from the factory. These wheels are also available for order for existing customers. They come fully polished as standard. Tires are currently Nitto Invo based on availability.
Pricing is as follows:
Upgrade on New Chassis Order: $2,000
Rims Only (for existing customers): $1,999*
Rims with Tires and Updated Front Pegs: $3,199
* For existing customers with knock offs the front wheels require a different peg for the offset of these wheels and the price is $300 for a pair of proper pegs.
While I realize the big wheels are not for everyone... they are for some.