4Pcs Road Bike Crank Chain Wheel Spacers Adjuster Hollow Crankset Washer for Enhanced Cycling Efficiency and Durability

The washers fit minimizes noise, providing a smoother cycling experience. Make of aluminum alloy, light weight, corrosions-resistant, ensuring stable performances for long terms use. Hollow designs effectively reduces overall weight and improves transmission efficiency during cycling. 4Pcs Road Bike Crank Chain Wheel Spacers Adjuster Hollow Crankset Washer for Enhanced Cycling Efficiency and Durability. Features: The washers fit minimizes noise, providing a smoother cycling experience. Make of aluminum alloy, light weight, corrosions-resistant, ensuring stable performances for long terms use. Hollow designs effectively reduces overall weight and improves transmission efficiency during cycling. precisions engineered for accurate fit that resists detachment during rides. Suitable for 24mm and 30mm shaft cranks, to meet different chainring shaft diameters and lengths. Specifications: Component: Aluminum Alloy. Type: Set 1/Set 2. Set 1:1mm+1.5mm+2mm+3mm inner diameter 24mm). Set 2:1mm+1.5m