we use millenco triple levelling ramps and do need them even on level ground as rear is always higher than front even fully loaded with scooter in the garage. But when I apply handbrake it always moves back a couple of inches (seems to be as the brakes take up the load [alco chasis]) this nearly always sets the tyres on the pointed ridge between the 'cups ' that the tyres are meant to sit in. I am worried this will damage the tyres in time. has anybody made there own ramps and if so out of what? as the flat top type do not appear to be made in high enough versions.