100/90-R17 tires are 0.79 inches (20 mm) larger in diameter than 100/80-R17 tires and the speedometer difference is 3.3%. May 25, 2015 · Along with 80W-90, there are alternatives that probable weren't available when your machine was built like 75W-90 synthetic, 85W-140 and 80W-140 that will suit your need. My predecessor made the mistake of specifying a gear oil in an axle with bronze faced friction disks got the brake and I had to write a multi-million dollar program to replace 3.00. 25.45. 6.15. 10/32. 908 @ 41. Our Dunlop D401 / D401T tires are in stock & for sale at your local dealer and PRO dealers. Look through tire specs, features and any available rebate offered. 120/90-R17 tires are 0.94 inches (24 mm) larger in diameter than 120/80-R17 tires and the speedometer difference is 3.7%. Jun 14, 2011 · 3.8k. #3. Posted June 14, 2011. When I bought my bike the first thing I did was put the Avon 130 tire on front. I thought the low speed handling was fine, never had a problem. I never thought the bike tracked very well on the highway tho, steering felt very lite, but I guess I got use to it, when came time for a new tire put another 130 on, and Pirelli Diablo Rosso Corsa Ii Tires 90/80-17 100/70-17 Pirelli Ring Tires 17 ₱ 5,380.00 . joker_speedshop.ph . 4.8 (141) Shopee . Pirelli. Pirelli Angel Ct Tubeless 130/60-R21 tires are 0.47 inches (12 mm) larger in diameter than 80/90-R21 tires and the speedometer difference is 1.7% Nov 9, 2011 · Years ago when riding a lot of desert in Arizona, I fell in love with the 90mm wide front tires that were relatively new on the scene (circa ~ 2010?). Now as I'm transitioning back to MX and singletrack in Colorado, I've been riding both width tires: 80 and 90mm widths. I'd like to hear your general thoughts on the pros and cons of each width. 120/80-R12 tires are 0.47 inches (12 mm) larger in diameter than 100/90-R12 tires and the speedometer difference is 2.4% 0. 0. 0. 0. Better Fuel Economy Factory Ratios Increased Power. vs 80/90-16 vs 80/80-16 vs 100/80-16 vs 100/90-16 vs 80/80-17 vs 95/80-16 vs 120/70-14 vs 110/70-16. 80/90-R14 tires are 2 inches (50.8 mm) smaller in diameter than 90/80-R16 tires and the speedometer difference is 9.3%. rmfSJC.