TuoTu Bike Headset Spacer 5 Pcs Full Carbon Fiber 35101520mm 1 18 Mountain Bicycle Headset Fork Washer

【Good adjustment tool 】Perfect for adjusting the bottom bracket, steering wheel or bicycle hub, its washers will never accumulate dust or rot by oxidation., 【Adjustable & flexible 】Provide various combination to adjust height of handlebars to fit your riding style, offer you great riding experience., 【Easy to install 】They are lightweight, easy to install, have a smooth surface and are exquisitely crafted., 【3K carbon fibet materials 】Made of great quality full 3K carbon fibet materials, durable and exquisite workmanship to use., 【Detailed-Information】Headset Spacer Set 1-1/8". Inner diameter is approx. 28.6mm while the external is 34.9mm