Bike spacers constructed of aluminium alloy. Strong and durable. Lightweight and easy to install and remove. Easy to install and remove Easy to install and remove. Bike spacers headset suitable for mountain bike, road bike, widely applied. Perfect for adjusting your bike bottom bracket, flywheel or hub, 7 different thickness included, meet your needs.
Specification: Condition: brand new Material: aluminium alloy Color: as picture shown Thickness: 1mm, 1.5mm, 1.85mm, 2mm, 2.18mm, 2.35mm or 2.5mm