This 5mm headstock spacer is used in the steering assembly of Revvi 18 and 20 electric bikes, helping to fine-tune the height and fit of the handlebars. It ensures proper headset compression and smooth steering feel.

• Fits Revvi 18 & 20 bikes

• Used in the headset stack to adjust handlebar height

• Helps maintain correct bearing tension for smooth steering

• Ideal for customising rider fit or replacing lost spacers

• Easy to install between the headset and stem