Undercut 40 Tooth Sprocket for 520 ChainHyper Racing # 080 040 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 rear 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

creating a short

Hyper Racing # 146-271

Non-combustible

Engine Ice is the finest coolant on the market

Hyper Racing # 37-099

or 4 bolt hubs

Also the new button lock feature prevents unwanted channel or volume changes

Hyper Racing # 600-4953

25 ounces over standard housing

Hyper Racing # 080-047

Does not work with wishbone

and research & development to provide the best shock dampening profiles and adjustments for the varying track conditions and chassis configuration