Mpart splined alloy headset spacers 1 1 8 inch 5 10 15 mm black pack of 3
Mpart splined alloy headset spacers 1 1 8 inch 5 10 15 mm black pack of 3 are machined aluminium super lightweight 40 lighter than standard alloy spacers splined internal construction gives additional rigidity and strength another way to save a few grams