Proto SCS Clamp The Proto Standard Compression System (SCS) is Patented and the original and first SCS scooter compression clamp ever made and is considered the best among many pro riders. Also known as the ‘Knuckle”, this SCS clamp is 4” tall which makes it suitable for forks with longer steerer tubes or decks with short head tubes. Ideally, the steerer of your fork sticks up between 1.5” and 1 7/8” above your headset. Proto SCS comes with a shim so it can be used with both standard 1 1/4" outside diameter as well as oversized 1 3/8" OD bars and aluminum bars. Proto SCS comes in many anodized colors and is CNC machined in California from 6061 T-6 aircraft grade aluminum. The clamp comes with compression cap, compression bolt, and a 1.125” star nut. Features Fits Regular and Oversized Bars 6061-T6 Aluminum Includes Shim, Compression Washer, Bolt, and Star Nut www.protoscooters.com
