Can you take 3 wheelers to Durham town ??...i was turned away years ago but was told it may be different now

You can

I've seen several 3 wheelers out recently. I don't know why they would turn you away. I've been out there 5 times in the past month and a half or so and there were three-wheelers at least twice. The first time we even saw them on the GP track.

I'm not sure how to answer that question you might want to call them to find out