I was wondering if anybody ran grooved radials on ther rig ? I saw some in a magazine and it didnt tell the tire height it told the circumfrance or something it said they were 145" tires what size is this in height like a regular tire is measured ? is it like a 19 or and 18 or what ? and also does anybody have them how well do they hold up and are they a good tire ?

 

I have the Riken radials on my 250R. I do not know the american tire size, but they measure 19" in height. On a MX track there is a noticable improvement on handling, but they are aweful in the sand. The Rikens are no longer available but there is another brand they are selling now. I have had mine for little over and year and they are holding up real well. After all, they are really steel belted car tires that have been grooved.