Can I use a 17 inch spare with 19 inch wheels?
If one wheel is significantly smaller or larger, those systems can behave unpredictably, and in some cases it can even place strain on the drivetrain. This is also why a space saver that works for a 17-inch wheel version of a car may not be suitable for the same model fitted with 18 or 19-inch wheels.
Is it illegal to have no spare tire?
While it’s not against the law to drive without a spare wheel on board, and it certainly won’t fail your next mot test to turn up without one, it’ll give you an indication of whether your car’s likely to be carrying any other form of tyre puncture remedy. It is recommended that you always carry a spare tyre with you, as accidents or punctures can happen when you least expect them. However, there is no legal requirement in the uk which states that you must carry a spare wheel with you as a driver.