Kenda Booster Tire 20 x 3.3 SRC K-Shield Reflex Wire BlackThe Kenda Booster Tire 20 x 3.3 is aggressive enough to push traction to new limits. Additionally, it’s one of the fastest and lightest XC tires on the market. Weighing only 1433g the booster has a maximum PSI of 30, 30 TPI casing, and a reflective sidewall strip to increase visibility. The K-Shield adds additional puncture protection. Available in Black.