This set of BikeHard Carbon Fiber Headset Spacers will work with any 1 1/8" steerer tube. It comes as one 5mm, one 10mm, one 20mm, and one top cap. Each carbon spacer is constructed entirely of carbon fiber and is finished with a high shine gloss coating. The top cap is alloy with a 3K Carbon top layer. Simply replacing your current spacers and top cap will easily enhance the look of your favorite bicycle, while simultaneously reducing its weight.

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Weight: 5mm (2grams), 10mm (4 grams), 20 (8 grams), top cap 10 grams.