ah,,, he asked for 13"
& the A048Rs are a wet wether road legal race tyre,,, so they`re made for wet weather racing in England
Yoko Aust wouldn`t even release them in Aus (had to import them yourselves years ago) as they will shred in our hot climate on a hot day with dry track ,,,& the word was that Yoko Aust didn`t want to bother with any pending warrantees so they basically pretended that they didn`t exist
they`re produced in 3 different compounds (as far as i`ve been led to believe) --> SS (super sticky/soft),,, S -(soft) & M-(Medium)
there may even be more compounds, but i`ve not seen any more (yet)
great tyre ,,, & yes i use them