[woodcote]

On page 4 of the rules document it says...

Class 1 and Class 2 Scalextric Production Rules - "Tyres: Any rubber or urethane tyres are permitted..."

Class 3 UK Slot Rally  - "The UK Slot Rally class cars must be prepared according to regulations on page 5. Please note: rear axle width, rubber tyres and inline motor orientation."

And on page 5: "W2) All wheels must have tyres and they must be made of black rubber. Silicone and urethane tyres are not allowed..."

The scrutineering process will go through each of the relevant rules for each car. At a WHO race, if a car fails scrutineering, it is simply handed back to the owner to change the parts or use another car. It's inevitable that - from time to time - rules are inadvertently overlooked or misinterpreted. With a proxy, it's more tricky because the driver isn't there. I will contact the entrant to come up with a satisfactory solution. I do have plenty of spare tyres and parts. An alternative would be for the car to run, but be ineligible for prizes.

The best thing is always to ask for clarification beforehand

I was going to add a post about tyres, so now is perhaps a good time... Tyres are really important. We have a decent variety of surfaces so a good all-rounder would be the best tyre choice. That might be the (rubber) NSR Ultragrip tyre. However, because there are six stages with Scalextric Sport track, the (rubber) Slot.it P6 compound are an option - they perform really well on Sport, less well on the higher grip surfaces. The P6 also requires little or no truing, unlike the Ultragrips. That's only two ideas - racers might have their own favourites.

The NSR and Slot.it tyres won't fit many of the Scalextric hubs (which cannot be replaced). For the Scalextric classes, urethane tyres (Paul Gage, WASP etc) might be the best option. We find them good on Sport. I'm going to test some WASP urethane tyres and see how they go.