Most manufacturers have moved away from triple and quad clamps because of increased weight over a double clamp. Rather than doing away with their triple clamp, Lucky reduced the weight and overall size, making it just a couple ounces heavier and a couple mm taller than their double clamp. The 3rd bolt adds massively increased clamping power over a double clamp. The Lucky triple clamp was designed for oversized outer diameter bars with a slit but, if you purchase a shim for a marginal fee, you can use this 3 bolt clamp with your standard outer diameter bars with a slit. The Lucky scooter clamp is an aluminum triple clamp. Triple clamps weight a little more than a double clamp but provide superior clamping power to a double clamp. The Lucky triple clampThe Lucky triple clamp includes standard M6 bolts, which provide adequate clamping power but can strip if overtightened. 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 Lucky scooter clamp works with the following types of compression: HIC,TCS.