If you're fitting aftermarket wheels and going up a size, you may need to look at fitting a wheel spacer to ensure that there is enough clearance for suspension, brake calipers etc. We have a number of spacers in differing widths to suit the smallest 3mm requirement up to 20mm wheel spacers by the high quality brand of MOMO.
Important Safety Information You should tighten all nuts or bolts to car manufacturer's recommended torque setting. The information can be found in the vehicle handbook. You should also check the tightness of all nuts or bolts after the first 100 miles and periodically check tightness thereafter.