245/55-R15 tires are 0.07 inches (1.8 mm) smaller in diameter than 245/45-R17 tires and the speedometer difference is 0.3%. 245/40-R18 tires are 1.1 inches (27.9 mm) larger in diameter than 215/45-R17 tires and the speedometer difference is 4.3%. Oct 28, 2006 · 235/40/17 - 21 lbs 1323 lbs max load 245/40/17 - 22 lbs 1356 lbs max load 235 compared to 245-----1. Lighter than 245 2. Better in the rain and snow due to narrower width. 3. Better useable gearing from 2nd to 6th 3b. 1st gear is already spinning and therefore the gearing is a disadvantage for first gear launches. 4. In the tire comparison table above, you can see a detailed calculation of the size difference between 235/45 R17 and 245/45 R18 tire. The calculation results are presented in the form of visual infographics, on which tire with size 235/45 R17 is on top, and tire with size 245/45 R18 below. Both in the table and in the graph, the tires are Toyo Observe G3 Ice 245/45R17 99T XL Tire. 4. Free shipping available. $ 17388. Pair of 2 Lionhart LH-503 245/45ZR17 99W XL All Season High Performance A/S Tires LHST5031745040 / 245/45/17 / 2454517 Fits: 2014-16 Mercedes-Benz E350 4Matic, 2000 Ford Mustang SVT Cobra R. Free shipping, arrives in 3+ days. Tools & Tech: 225-45R17 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. .

245 40 r17 vs 245 45r17