What tyre size does a Smart #5 use?

The most common size is 245/50R19. Depending on generation and engine, the Smart #5 uses 3 different sizes including 245/50R19, 255/40R21, 255/45R20.

Where do I find my exact Smart #5 tyre size?

Check the tyre placard in the driver's door jamb or fuel flap, or use the lookup tool on this page to select your generation and engine.

Tyres › Smart › #5

Smart #5 tyre sizes

All factory fitments by generation and engine — 3 sizes across 1 generation.

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Quick answer

The most common tyre size on the Smart #5 is 245/50R19 (overall diameter ≈ 728 mm). Exact fitment depends on generation and engine — full breakdown below.

#5 (HY11) 2025 - SUV (2025–present)

Engine	Tyre sizes
#5 - 106 PS - Electrical	245/50R19 255/40R21 255/45R20
#5 - 116 PS - Electrical	245/50R19 255/40R21 255/45R20
#5 Brabus (475kW) - 190 PS - Electrical	245/50R19 255/40R21 255/45R20
#5 Pro (250kW) - 106 PS - Electrical	245/50R19 255/40R21 255/45R20
#5 Pro+ (267kW) - 116 PS - Electrical	245/50R19 255/40R21 255/45R20
#5 Pulse (432kW) - 166 PS - Electrical	245/50R19 255/40R21 255/45R20

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