Enhance your bike's performance with this 5-arm aluminium crankset and spacer washer set. With an internal diameter of 9.8mm and a thickness of 2mm, these chainring bolt spacers are perfect for your road bike, BMX bike, BMX bike-flatland, or universal bike. This set includes five pieces, each weighing only 0.3g, making them lightweight and easy to install. In a sleek silver color, these chainring bolt spacers are an essential part of your bike components and parts. They are compatible with different bike types and are made of sturdy material to withstand everyday use. Upgrade your bike's performance with this chainring bolt spacer set now!