18"x8J rear wheel + 240/40 rear tyre

Specialised 8" wheels are very expensive, and I had seen a few Yamaha V-Maxes using BMW car wheels which is a much cheaper option.
I was eyeballing a cheap 18" wheel for a while on marktplaats.nl and when the price came down to €20,- I just couldn't resist anymore. The main reason to pick them up is because the spokes are recessed which gives them more of a bike-look.
The wheel is a Masitaly Sagitta 18" x 8J
Luckily we found an old GSX1100 wheel that carried a donor-card so I painlessly removed the hub.
In the lathe to remove the last bits of spoke.
The test-setup is looking good allready!
Even though the swingarm is mega-wide there will be just enough chain-clearance.
This is what the guys and gals at ISR call a "sprocket-brake". And this is the brake system I'll be using, consisting of nothing more than a generously perforated sprocket and a twin piston caliper that'll be able to bit a 9mm disc (width of a 530 sprocket).
I decided to go for the Metzeler 240/40R18 M/C 79V TL ME880 XXL Marathon Steel Radial Tyre, which has a street price of €200,- (gulp!)
Comparison of different rear-tyre options



Here are the tyre-options I looked at.
Click the images for a larger version.

Avon
230/ 60 - 15"
Avon
250/ 40 - 18"
Metzeler
240/ 40 - 18"
This is the flange that connects the GSX1100 hub to the rear wheel, design by Mr.7/11, material provided Postma Motoren and all excess lovingly removed again by Tinie Klerx from BikePenR