SUNSTAR SPROCKETS REAR SPROCKET 520 51T WORK-Z 8-3577-51 Contour Throttle Boss Fit: "ACF/Men" anatomically designed for

Fit: "ACF/Men" anatomically designed for best comfort

0 Rear Type: 803 Rear Version: Standard

6 Liner Layers under The Treat For Enhanced Strength and Puncture Protection

Secondary Outer Material: Ballistic

Carcass Structure Blends Road Action and Off-The Road Puncture Resistance

SUNSTAR SPROCKETS REAR SPROCKET 520 51T WORK-Z 8-3577-51 Contour Throttle Boss Fit: "ACF/Men" anatomically designed forElectro Less Nickel Plating Gives Works Z Sprocets More of a Brushed Natural Stainless Steel Apperance But Doesn''t Compromise Performance, Durability or Corrosion Resistance , Constructed of the Highst Quality Stainless Steel and 100% Heat Treated for the Ultimate Combination of Strength and Durability , Unique offset tooth design for exceptional self cleaning capabilities, extending the life of the entire chain drive system by removing mud and dirt