RWLs are hard to find for bikes. Bridgestone spitfires at 1 time. I wish I could help you with a brand, but all I can say is you can get rubber safe paint and diy.
The ride IS the adventure. The destination is just to get gas!
Rerun is right, they're tough to find. You can find RWL more often for Harley's, but often times it will actually say "Harley Davidson" on the tire. Lot's of older Sportstr's ran our sizes.