Kenda K657 Challenger Front Tire - 90/100H-21/Blackwall Kenda K657 Challenger Front Tire Excellent handling and wet weather traction 6 Ply tubetubeless carcass designed for high speed stability Matching frontrear tread pattern for more responsive handling and cornering Stiff sidewall provides better performance and handling Matching frontrear tread pattern for more responsive handling and cornering but can be used independently