The quiet tyre

[pigpen]

Has anyone got any experience of the Dunlop SP sport 01 - advertised as 'The quiet tyre'? I've got standard wheels on the Chim with Goodyear Eagle F1s on the back (quite new) and Goodyear Tourings on the front - getting down. The car came with these but I do find them excessively noisy at speed. I'm actually not sure just now though whether the correct size of the SPs is available with the right speed rating. At some point in the near future I'm going to have to change so any advice will be welcome.

Thanks

Mike