JT Sprockets JTA1304.45 45T Aluminum Rear Sprocket
All of JT Aluminum Sprockets are computer designed to combine the ultimate strength at minimum weight and they are CNC machined to aviation tolerances. Made of Austrian 7075-T6 aluminum alloy, they feature meniscus shaped self-cleaning grooves on all the teeth on both sides. The sprockets are sand blasted to reduce material surface tension and then finished by anodizing to a superb satin-silk effect.