03-08-12, 12:51 PM
use scaffolding planks screwed together to cover almost the entire width of the gap. length should be from the actual road to the top of the step. or better still would be to use a spacer underneath the top end so the wood is level with the upper surface. you will also need to pack out the space underneath to stop springiness. just build up using timber to the corresponding step. finally, use a rope to tie the ramp to that handrail. it will be heavy but ok. sit on the bike, slow speed, feet down.