Bicycle Stem Headset Spacer Headset Aluminum Alloy 28.6mm Bicycle Front Stem Fork Washer Set for MTB Bike Road Bikes, 4Pcs/Set 5mm/10mm/15mm/20mm

En la foto aparecen separadores de carbono y en la información también y son de aluminio

These spacers are a must for those who have changed the stock head - as in my case, I needed an extra space to allow for the compression of the forks correctly - to ensure it was tightened up. These spacers worked very well and as I never used them all , I have spares for other bikes.Thanks and great product.