- K591 is the approved Harley-Davidson sport tire, and the only Harley-Davidson sport tire that is made in the U.S.A.
- Originally designed for racing but now incorporating refinements to meet the demands of street riders, K591 delivers optimum grip in wet or dry weather for confident cornering
- Blackwall
- V-rated for speeds up to 240 km/h (149 mph)
- Tubeless (TL)
- Harley-Davidson® Tire Series