5mph Ridgeback Speed Bump Kits - 75mmThe Ridgeback speed ramp from JSP is a refreshing take on a modular speed bump. It features a clever interlocking design that makes it faster to install and enhances visibility. Each segment of these speed bumps is 500mm long and features eight reflective yellow triangles. These are recessed into the design to ensure they do not wear out prematurely. This dual colour approach means that regardless of how many speed bump segments are used, the colour