Farbetter 2 Pieces Bike Carbon Fiber Headset Spacer Bicycle Stem Spacer 1-1/8 Inch 30mm/40mm, 2 Size for Mountain Bike, Road Bike, 28.6mm Front Fork Bikes.

• Large size: This package contains two different sizes, 30mm, 40mm, larger size allows you to put in place in one step, the two sizes can overlap seamlessly.
• Materials: Woven carbon fiber, woven carbon, heat-resistant, impact-resistant, sturdy and durable, beautiful appearance, light weight.
• Feature: Carbon fiber headset spacer resistant to corrosion, more sturdy, durable, Lighter and harder than aluminum alloy headset spacer.
• Appearance: automatic cutting, all sizes can be stacked seamlessly, smooth edge, delicate texture and durable.
• Compatible Dimensions: The inner diameter is about 28.6 mm, the outer diameter is 34.9 mm, the total weight is about 35g. Perfect for most mountain bikes, road bikes, and 28.6 mm front bar fork bikes.

Specifications BrandName: Farbetter Material:Carbon Fiber Quantity:2 pieces Color:Black Weight:approx. 35 g/ 1.2 oz Internaldiameter: 28.6 mm Externaldiameter: 34.9 mm Thickness:approx. 3mm Features -Larger size allows you to put in place inone step. -Spacer headset of 2 Size can be stacked seamlessly. Package includes: 1 x 30 mm Headset spacer 1 x 40 mm Headset spacer Farbetter strive to provide exceptional products and services. Have any questions, please contact us immediately so that we may resolve the issue for you.