Guardian Ultra Lite 2 Bolt Clamp A 2-Bolt Addict Scooter clamp with 8mm bolts and a lightweight durable design Sold with a reducer shim to fit standard size bars Material: Aluminium 6068 Cold Forged Clamp Height: 48mm Weight: 110 Grams M8 Hardware for increased strength & reliability Oversized with Shim Includes: Reducer shim to fit a standard sized bar Size: 31.8mm (with shim) / 34.9mm (without shim) 8