farmalldanzil, many thanks for your quick reply! I'm brand new to this forum & I'm still figuring out how to use stuff. I live in Guilford CT. I'm a 63 year old re-entry rider who stopped riding 19 years ago due to my career (musician with insured hands). Looking forward to more correspondence with good folks like you! Ride Safe, WestYes dunlop d402 and d404 both come in 130/90/16. That is the stock size for the 650.
130=Millimeters in width from sidewall to sidewall
90% =Ratio of height to cross-section
16 =Rim size
So with this 130 millimeter wide 117 millimeters tall