Charmhoo 245/45 R20 103W ST1 2024

The Charmhoo ST1 245/45 R20 103W is a summer passenger-car tyre designed for road use, combining a wide 245 mm footprint with a 45-series profile and 20-inch wheel diameter. This specification is intended to provide a balance of road stability, steering response and everyday driving performance on dry and wet paved roads.

About Charmhoo ST1 245/45 R20 103W

Wet-Road Performance

The ST1 is designed as a summer road tyre with a tread configuration intended to maintain contact with the road surface and assist water evacuation. This makes it suitable for normal wet-weather driving when used within the vehicle manufacturer's recommended specifications.

Wet Braking

The available product information identifies the 245/45 R20 103W ST1 as a summer tyre, but an independently verified EU wet-grip label value for this exact ST1 variant was not confirmed. Wet braking performance can therefore vary with road conditions, tyre pressure, vehicle setup and tread condition.

Dry-Road Handling

The 245 mm section width provides a relatively broad contact area, while the 45-series profile supports more direct steering response than taller touring profiles. The W speed rating corresponds to a maximum rated speed of 270 km/h under the applicable operating conditions.

Ride Comfort and Noise

The 45-series profile provides a moderate sidewall height for a 20-inch application. Ride comfort will depend on tyre pressure, suspension condition, road surface and vehicle configuration. An independently verified external rolling-noise value for the exact ST1 245/45 R20 103W variant was not confirmed.

Rolling Resistance

No independently verified EU fuel-efficiency label rating was confirmed for the exact ST1 245/45 R20 103W variant. Rolling resistance can vary according to tyre pressure, vehicle weight, road surface and driving conditions.

Summer Road Use

The Charmhoo ST1 245/45 R20 103W is listed as a summer tyre and is intended for paved-road driving in warmer conditions. It is not a dedicated winter tyre and should not be used as a replacement for a certified winter specification where winter conditions require one.

Load Capacity

The 103 load index corresponds to a maximum rated load of 875 kg per tyre under the applicable conditions. The vehicle manufacturer's recommended axle loads and tyre specifications should always take priority when selecting a replacement tyre.

W Speed Rating

The W speed rating corresponds to a maximum rated speed of 270 km/h. This rating should be considered together with the tyre's load index, inflation pressure and the vehicle manufacturer's approved fitment requirements.

Vehicle Compatibility

The 245/45 R20 103W specification is used on selected passenger cars and other compatible road vehicles. Exact compatibility depends on the vehicle manufacturer's approved tyre size, load index, speed rating and wheel specification.