

AFAM 520MR2 13/50 chain kit with Ultra-Light sprocket, designed to reduce the weight of the rear drivetrain while maintaining good durability and responsive acceleration.
AFAM offers a 520-pitch chain kit for the KTM MX 125cc, consisting of a standard MR2 chain without seals, a 13-tooth steel sprocket, and a 50-tooth Ultra-Light aluminum rear sprocket. The chain’s chrome-plated pins and forged rollers contribute to its durability and smooth operation under repeated stress. The aluminum sprocket reduces rotating mass compared to a conventional steel sprocket, resulting in a more responsive rear wheel. The 13/50 configuration offers a gear ratio suited to compatible motorcycles and prioritizes acceleration more than setups equipped with a smaller chainring. The steel sprocket ensures precise engagement with the chain and effectively withstands the forces transmitted by the engine. This set thus provides a complete solution for upgrading the drivetrain while striking a balance between light weight, durability, and acceleration efficiency.
Fits:
1993 KTM 125 MX
1992 KTM 125 MX
1991 KTM 125 MX
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