The Wise SCS clamp is an SCS compression system. A couple of facts about SCS compression. (1) It is simply the most effective compression system money can buy. (2) It is expensive compared to other compression systems. (3) You get what you pay for. The Wise SCS comes with a shim so it works with either oversized or standard bars without a slit. It also utilizes heavy duty M8 bolts to prevent stripping. SCS compression is so effective because it compresses your forks and bars independently. Spend more time riding and less time tightening your compression with the Wise SCS clamp. The Wise SCS clamp is an aluminum SCS compression system. The Wise SCS clamp is a full size SCS because it is slightly larger than a baby SCS but provides maximum clamping power. The Wise SCS clamp only works with SCS bars without a slit. While SCS compression is more expensive than other compression systems, it is the most effective compression system you can put on a pro scooter. The Wise SCS clamp includes a shim and works with both oversized and standard outer diameter PRO SCOOTER BARS without a slit. The Wise SCS includes M8 bolts for maximum clamping power. M8 bolts are much less likely to strip than M6 bolts. It is a good practice with any compression bolt to tighten each bolt 1/2 turn at a time, one bolt at a time, until all bolts are completely tight. The Wise SCS clamp works with the SCS compression ONLY.