130/80. 4.00/4.50. 120/100. 140/80. 5.00/5.10. At this point, you should be more than ready to choose a new set of treads. So check out our huge selection of motorcycle tires ! As always, anything over $49 ships for free in Canada. And when your tires arrive, take a look at How to Break In Your Tires Faster, Better and Safer. 90/90-R21 tires are 2 inches (50.8 mm) larger in diameter than 90/90-R19 tires and the speedometer difference is 7.3% 6223. Better Fuel Economy Factory Ratios Increased Power. vs 80/100-21 vs 90/90-21 vs 110/90-18 vs 70/100-21 vs 120/90-18 vs 100/100-21 vs 90/80-21 vs 80/100-23. 130/70-R18 tires are 2.92 inches (74.2 mm) smaller in diameter than 90/100-R21 tires and the speedometer difference is 10.4%. Dec 7, 2015 · Although current day mineral 80W90 is typically AGMA/ANSI 4EP /ISO 150 , in terms of differential components protection ,is weak against pre-J306 monograde EP 90** as originally spec'ed. Note: Current day synthetics 75W90 is typically AGMA/ANSI 3EP /ISO 100 of KV@40C of 90 - 110 cSt. Originally Posted By: bunnspecial. •Used to turn the pipe 90 degrees. •One end is spigot and the other end is hub. •SPG x H Long Sweep 1/4 Bend Part No. PVC 304 •Used to turn pipe 90 degrees. Sometimes referred to as a long radius elbow. •H x H Cleanout Plug Part No. PVC 106 •Screws into cleanout adapter to seal off a pipe. •MPT Flush Cleanout Plug Part No. PVC 110 90/90-21 80/100-21 Difference; Diameter inches (mm) 27.38 (695.4) 27.3 (693.4)-0.08 (-2) -0.3%: Width inches (mm) 3.54 (90) 3.15 (80)-0.39 (-10) -11.1%: Circum. inches (mm) 86.01 (2184.66) 85.76 (2178.38)-0.25 (-6.28) -0.3%: Sidewall Height inches (mm) 3.19 (81) 3.15 (80)-0.04 (-1) -1.2%: Revolutions per mile (km) 736.66 (457.74) 738.78 (459.06 Apr 6, 2016 · here i show different FOV's and give you some advices to choose which is perfect for you. 90/100-R21 tires are 0.71 inches (18 mm) larger in diameter than 90/90-R21 tires and the speedometer difference is 2.5%. 100/90-R19 tires are 0.71 inches (18 mm) larger in diameter than 90/90-R19 tires and the speedometer difference is 2.7%. front 80/90-21 m/c 54h rfd tl 〈mcs01406〉 rear 150/80b16 m/c 77h rfd tl 〈mcs01409〉 fxdwg wide glide (-2001) front 80/90-21 m/c 54h rfd tl 〈mcs01406〉 rear 130/90b16 m/c 73h rfd tl 〈mcs01410〉 fxlr series. front 80/90-21 m/c 54h rfd tl 〈mcs01406〉 rear 130/90b16 m/c 73h rfd tl 〈mcs01410〉 fxstd softail deuce/fxstdi softail L3KepkD.