Chain, 428 1/2 x 1/4, 104P, HD. Choho

Rear chain, 428 (1/2 inch pitch x 5/16 inch wide), 104 pitch, Choho brand, CT110 posty bike an dmany others. Dimensions: Pitch 0.5inch [1/2] (12.7mm); Inside plates 0.3125 inch (5/16 ) (7.93mm);