The "JF 274-15" (or JTF274.15) is a 15-tooth, 428-pitch front countershaft sprocket manufactured by JT Sprockets. It is primarily designed for classic and vintage lightweight Honda motorcycles and minibikes, as well as several dual-sport models. [1, 2, 3, 4, 5]
Some of the notable classic and vintage motorcycles that utilize this sprocket include: [1, 2]
