Proto Half Knuckle Double Scooter Clamp - Black

Regular Price £52.95 Special Price £50.95
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The Proto Half Knuckle V2 Scooter Double Clamp is the latest generation of 2 bolt scooter clamps.  Made to be insanely strong, and running since 2008, is this 2nd edition of the Half Knuckle Stunt scooter Clamp and features a laser engraved Proto Star logo.


  • Inner Diameter: 32mm (Regular), 35mm (Oversized)
  • Half Knuckle comes with a shim so you will find it compatible with most bars
  • Forged 6061 T6 Aluminium
  • Standard bar shim included
  • COMPATIBLE: Oversize 34.9mm & Standard 31.8mm (shim supplied)
  • M8 Bolt Hardware
  • 6mm Allen Key drives
  • Technology leading "spreader bolt" to make installation easier and also safer for use from breakage of the bars
  • Offset slot for higher torque and power
  • Weight: 141 grams
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UK Mainland

 Basket Value
Delivery OptionUnder £40Over £40
Courier Shipping 3-5 day£2.95FREE
Courier Shipping 1-2 Day£4.95£4.95

Rest of UK

RegionWorking DaysCost
Scottish Highlands2£19.95
Northern Ireland2-3£4.95
UK Off Shore Islands2-3£5.95

International Delivery Information

We offer worldwide delivery. This takes 3 to 5 days for most of Europe and is often free with orders over €80.

For information regarding international delivery please click here.


We warranty all orders for genuine manufacturing defects up to 30 days from delivery (not damage caused through use). If any issues arise after this time, warranty cover will be passed over to the brands & suppliers we work with. Full details on the warranty period/conditions etc.

Please note, any scooter or other products sold that used in an extreme manner or at a skate park, have limited warranty cover due to the nature of use they are put through. To raise a warranty claim just contact us, with your order number, details of the fault and a photograph/video of the issue to provide sufficient evidence.

Easy 30 Day Returns

We provide a simply returns form with all orders, if you’re not happy after receiving the item within the first 30 days, you’re able to return it for a refund. This does not cover product warranty periods. More info

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