These aluminum alloy bike spacers are designed for mountain, road, and fixed-gear bikes. They provide a great fit for your bike's front fork, ensuring a smooth and stable ride. The spacers are lightweight yet durable, making them ideal for both casual and competitive cycling. Enhance your bike's performance and aesthetics with these sturdy spacers. Features -Color:Golden -Material:Aluminum Alloy -Size:3.30X3.30X1.00cm/1.30X1.30X0.39in -Size:3.30X3.30X0.50cm/1.30X1.30X0.20in -Size:3.30X3.30X0.30cm/1.30X1.30X0.12in -Size:3.30X3.30X0.20cm/1.30X1.30X0.08in -hardwearing material: made from aluminum alloy, these spacers are lightweight yet durable, ensuring performance for your bike -Multiple thickness options: available in 10 mm, 5 mm, 3 mm, and 2 mm sizes, these spacers cater to various cycling needs and preferences -Smooth surface finish: the spacers feature a smooth surface and craftsmanship, making them reusable, sturdy, and durable -Lightweight and strong: aluminum headset spacers are lightweight and easy to install, offering better wear resistance and durability compared to carbon fiber spacers -Easy installation: designed for simple installation and removal, these spacers provide convenience and ease of use for all cyclists Package list: 3 x 10mm Bike Stem Spacer 1 x 2mm Bike Stem Spacer 1 x 3mm Bike Stem Spacer 1 x 5mm Bike Stem Spacer