- The K591 is the approved Harley-Davidson sport tire.
- Originally designed for racing but now incorporating refinements to meet the demands of sport and sport-touring riders, the K591 is approved by Harley-Davidson for its sport models.
- V speed rating (up to 240 km/h).
- The K591 delivers optimum grip in wet or dry weather for confident cornering.
- "Harley Davidson" written on the sidewall.
- Available in front and rear sizes to fit Harley-Davidson Dyna, Sportster Sport and Deuce models.