Tools & Tech: 235-40R19 tire size comparison with 1010tires.com Tire Size calculator. Use our tire calculator to compare tire sizes based on tire diameter, radius, sidewall height, circumference, revs per mile and speedometer difference. 275/45-R21 tires are 1.08 inches (27.5 mm) larger in diameter than 275/40-R21 tires and the speedometer difference is 3.5%. In the tire comparison table above, you can see a detailed calculation of the size difference between 245/45 R18 and 245/40 R18 tire. The calculation results are presented in the form of visual infographics, on which tire with size 245/45 R18 is on top, and tire with size 245/40 R18 below. Both in the table and in the graph, the tires are In the tire comparison table above, you can see a detailed calculation of the size difference between 255/45 R19 and 255/40 R19 tire. The calculation results are presented in the form of visual infographics, on which tire with size 255/45 R19 is on top, and tire with size 255/40 R19 below. Both in the table and in the graph, the tires are 278 posts · Joined 2015. #2 · Jun 2, 2016. The 245/40/18 will be just under 1" smaller is total diameter than stock. Meaning the distance from the axle centre line to the bottom of the tire would be just under 0.5" = 0.5" drop of the frame towards the ground. However, your 'fender' gap would also grow by 0.5". . The 40-inch Nitto Trail Grapplers normally run on the Ford are mounted on cast aluminum 17x8.5 Raceline Monster wheels which adds up to about 145 pounds, which is 33% more than the 37-inch Ridge Grapplers on the AEV wheels. Note that Raceline also makes the Monster wheel in a forged version that weigh less, but they are about twice the cost. 245/45-R20 tires are 0.35 inches (9 mm) smaller in diameter than 255/45-R20 tires and the speedometer difference is 1.2%. The tires are worn out and I have decided to buy schwalbe marathon plus (since I often had flat tire due to broken glass on bicycle paths in my town) The original tires are Continental Contact 700×37c. Which size of the schwalbe should I choose : 37-622 28x1.40, 700x35C SmartGuard, or; 40-622 28x1.50, 700x38C SmartGuard 700x40c is the measurement of your bicycle tire and is sized according to what used to be known as the ‘French system’. ‘700’ is the nominal diameter of your tire, measured in millimeters. ‘x’ just means multiplied by. ‘40’ is the second number and is the nominal tire width, also measure in millimeters. 225/45 18" will increase diameter by 4.8% (thus exceeding the 3% rule) and the sidewall height by 15mm, that is a very close call, on my rough calculations, for rubbing while cornering. 215/40-R18 vs 225/45-R18 Tire Comparison - Tire Size Calculator I think 215/45 18" should fit without problem the tire fenders even while steering around.

difference between 40 and 45 tires