apparently designed especially for a valkyrie,
http://www.americanmototire.com/catalog/product_info.php?manufacturers_id=660&products_id=749BRIDGESTONE R702R 180/70R-16 M/C 77H, REAR [BAX7020]
Price: $153.34
HONDA VALKYRIE GL1500,
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DESIGNED AND DEVELOPED SPECIFICALLY FOR TOURING BIKES
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UNIDIRECTIONAL PATTERN FOR RELIABLE PERFORMANCE ON DRY OR WET SURFACES
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TREAD COMPOUND MAXIMIZES TRACTION AND MILEAGE
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TUBELESS, BLACKWALL ONLY
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COMPOUND AND CONSTRUCTION TO SUIT THE WEIGHT, HORSEPOWER, AND HANDLING CHARACTERISTICS OF THE MODEL FOR WHICH THE TIRE WAS DESIGNED