Allstar Performance 1:1 Crank Pulley RS003C0412 9-1/8 in ID

9-1/8 in ID

Significantly lighter than the previous ST4 helmets

205 lb/in Spring Rate

Simple Sizing - only two sizes - Medium (up to 16") neck and Large

Plastic Fuel Tank

Allstar Performance 1:1 Crank Pulley RS003C0412 9-1/8 in IDPremium 1: 1 pulley kits feature 4 3 4" diameter pulleys with 1 2" wide grooves for use with industrial grade belts. The increased belt width helps reduce belt slippage when used with high performance mechanical fans. The small diameter pulley combination provides a 30% RPM reduction when using a power steering pump with a 6" pulley. Specialty items for the Shop, Trailer and Track. The Allstar Performance brand offers thousands of hard to find,