Keithy the tyres hit the two plastic corner edges in the middle of the pic. They can be pushed back 2cm quite easily by hand. To permanently secure I think would be easy, but dosn't bother me enough.
its Parry's Beach Denmark on the south coast, on hat particular spot cars drive on it and you can ride your bicycle no problems, a few ks around though and its a different story.
Hey Hammer I have exactly same tyres and occasionally scrape in same spot (funny that). Have been thinking about doing avertical cut from bottom inner corner and using heatgun to setback about 2-3cm to give just enough clearance.
I was thinking of a spacer behind the radius arms, to bring the front axle forward 10mm to 12mm. Another potential solution - just not sure of the knock on effects.
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