AFAM 520MX6 14/50 Reinforced Chain Kit - Ultra-Light Sprocket for 2003 KTM SX RACING 450

AFAM offers this reinforced 520MX6 chain kit for the KTM SX RACING 450 cc, featuring a 14/50 configuration, a chain designed for MX use, and an Ultra-Light aluminum rear sprocket. The 14/50 gear ratio—equivalent to 3.57—offers a balance between traction, acceleration, and top-end speed, with a less compact gear ratio than a 13/50 setup. The lightweight sprocket reduces weight compared to a steel version, which promotes a more responsive drivetrain during changes in pace. The setup thus maintains an attractive balance for riders seeking responsiveness without exclusively favoring very short gear ratios.

Fits:

2003 KTM 450 SX RACING