Undercut 55 Tooth Sprocket for 520 Chain Tools two 2-piston bottom seat mounts

two 2-piston bottom seat mounts

and flat top (no protruding loop) with a hole drilled directly through the body

black anodized & post machined

Hyper Racing # 600-771

Undercut 55 Tooth Sprocket for 520 Chain Tools two 2-piston bottom seat mountsHyper Racing # 080 055 Redesigned in September of 2024 to be heavy duty for extreme high horsepower 600's. The ultimate dirt track sprocket for your 600 270 Micro Mini Sprint is here! Our own undercut black anodized tough 7075 aluminum one piece sprockets are the premium choice where durability, and weight matter. The undercut tooth profile helps to remove dirt and debris from the chain helping the chain and sprocket last longer. The geometry used on