New 11++ 235 40 18 Tires
New 11++ 235 40 18 Tires. Shop by tire width, aspect ratio and rim size across tire brands, types and fitments here or at one of our 950+ locations. Find 235 40 18 tires in tires & rims | find new tires & rims in ontario. 235/40r18 tires have a diameter of 25.4, a section width of 9.3, and a wheel diameter of 18. The circumference is 79.8 and they have 794 revolutions per mile.