Just got an '09 Crossbones and want to put wide white walls on it. Can find the front no problem, but the 200/55R17 on the rear seems non existent. Does anyone make one?
Also....why a radial on the rear and a bias ply on the front?
Not aware of any company that makes one, yet. Not a popular size, nor demand for a whitewall.
Dunlop® MT135/90B16 72H
Dunlop® 200/55 R17 78V
True, you ARE running a Radial in the rear, and a Bias in the front, but I can only explain that due to the front tire is an old design, and the newer, wider rear tire is a new design.
Harley, like other companies, will use what's available.
Considering Radial and Bias tires have different levels of traction and cornering characteristics, I wouldn't sweat it. You're not racing your bike, and your front forks are WWI technology, made pretty, so the Bias tire will be right at home.
If you were running a racing circuit, I'd worry. The tread design is the same, and the tire configuration matches, for smoother cornering trasnsitions. Considering the front tire is rated for 130 and the rear 149 mph, again..... you'll never need that either.