Good Day,
Have an issue trying to find out what the tire size limit and or preferred tires are available for my rd125dx. I thought of going to the bt45s putting a 90/90 on the front and a 110/80 on the rear. just don't know if they will fit. I have just posted on my website, if you are interested in a nice article on the 1981 yamaha rd125 for beginners.. www.champsclock.com/cyclecollection.htm
Cheers, Champ