For a long time I have used Bridgestone "Gritty", road legal enduro tyres on my trail bikes.
The current model numbers for their road and MOT legal pairing (note there are some similar tyres which are not road legal) are ED661 front and ED668 rear.
These tyres are marked MST which my local dealer informs me stands for multi surface tyre (ie tarmac and dirt).
Although these tyres do offer excellent grip in extremely muddy conditions I have rather gone off them in their recent form.
Bridgestone appear to have been developing these tyres for pure competition use rather than trail riding and while they have always been sold as "enduro" tyres the tread pattern used to be a good compromise. On the latest model though it is so agressive that in my view it's no longer really suitable for mixed (ie trail) use.
Still it is an option, especially if you do a lot of very muddy riding. Just don't expect to get more than a few rides out of the rear if you do any significant tarmac milage thats all. They literally disapear before your eyes!!!!
Still, you pays your money and you takes your pick I guess. Definitely still road legal although when you look at them it's hard to see how
.cheers
Richard
