Continental ContiWinterContact TS 850P is a winter tyre made in total of 114 sizes, ranging from R16 to R16 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 235/40 R18 is 30mm wider than the narrowest dimension (205) and 40mm narrower than the widest one (275). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (235mm), which results in 94mm sidewall height. In 235/40 R18, there are 2 possible speed indexes for Continental ContiWinterContact TS 850P - "V","W", which are good for speeds up to 240, 270 km/h. In 235/40 R18, ContiWinterContact TS 850P usually competes against UltraGrip Performance+, which is a tyre from GoodYear with a rating of 85%, compared to 0% of the Continental in question. Latest test in 235/40 R18 was held by AutoMotorSport in 2016, where ContiWinterContact TS 850P received rating "Highly recommended" and finished on the 1. place. It was tested on a .
