deilenberger
A bozo on the bus
It can be a problem at ANY speed if your front wheel gets captured by an edge trap.I was just trying to point out it's not a problem to climb up to a higher lane when going slow, but it can be a problem if you're going 60 MPH.
There was an excellent article quite a few years ago in Motorcycle Consumer News with a great explanation of how a motorcycle, due to it having to lean to turn (and counter-steering) can basically get the front tire sucked tight against an edge trap no matter what the rider tries to do to break free. Bob Higdon used that article in a lawsuit against WDC for a crash he had due to an edge trap. IIRC - once the defendant (WDC) saw and read the article, they just settled rather then continue to court.
In Bob's case, it was a steel construction plate (invisible at night, no warnings, no signs) that captured his front wheel, but it can happen just as easily with an edge formed due to paving. That's the reason to cross these sort of traps at as close to perpendicular as possible..