155/60 R15 is most commonly found as a front tyre size on the Smart fortwo (with a different size often used on the rear). It can also be fitted to certain microcars and niche trim levels. Always confirm the exact size for your car by checking the tyre sidewall, the vehicle handbook, or the door jamb placard before ordering.
Many fortwo models use a staggered set-up: narrower 155/60 R15 tyres at the front and wider tyres at the rear to support stability and traction. When replacing tyres, match the correct size to each axle and replace tyres in pairs on the same axle to keep handling predictable.
Choose the load index and speed rating specified for your car, usually shown on the door placard or in the handbook. For 155/60 R15, ratings vary by vehicle and trim, so do not assume a single rating will fit all. If you select a higher load index or speed rating than required, that is typically acceptable, but going lower is not recommended.
Only change from 155/60 R15 if your vehicle manufacturer approves an alternative size for your exact model, wheel, and axle position. A different width or profile can affect speedometer accuracy, clearance, ride comfort, and insurance acceptance. If you want alternatives, check the approved tyre sizes in your handbook and then shop those exact options.
Yes, winter and all-season tyres are available in 155/60 R15, although the range can be smaller than more common sizes. For all-season, look for the 3PMSF marking if you want cold-weather capability as well as year-round use. If your car runs different front and rear sizes, aim to keep the same seasonal type on all four wheels for consistent grip.