Thanks for the link Donone
It took a bit of finding but here's the info from their website.
Fancy taking to the Three Sisters Race Track on your own Bike? For the past few years Three Sisters has been organising Charity Ride-out days at the circuit, all you need to do is turn up on the day and pay a few quid.
All motorbikes must be road legal and all riders must have a valid, current road licence and be wearing suitable attire including full-face road-legal helmet.
The events normally run from either 2pm or 3pm until dusk and allow those that do not normally have access to a race circuit the opportunity to test their mettle and get a feeling of what the professionals do.
There is no need to book in advance, just turn up on the day. Costs are £5 for 3 laps or £10 for 7 laps and you can have as many goes as you like!
All proceeds are given to The Three Sisters Charity Ride-Out Charity for the purchase of two-seater karts, in addition to donations to other local charities and good causes.
Once the karts have been purchased and are in a condition to use, then applications will be accepted by the charity's committee for those that wish to use them.
If anyone goes to this and takes photos let me know, via PM, and I'll add the event to the calendar so the photos can be added.
http://www.three-sisters.co.uk/karting/charity-ride-out.asp