BDB70dBEU tyre label: fuel efficiency, wet grip and external rolling noise classes.
Technical specifications
CategoryPassenger car summer tyres
BrandHankook
SizeThe tyre size is shown as width / profile / rim diameter, e.g. 205/55 R16.
Select your designModelNameAvailabilityPrice
Tyre characteristicsReinforced tyre (XL)XL means Extra Load. The tyre is reinforced and can carry a higher load than a standard tyre of the same size. Always follow the vehicle's specified load index and tyre pressure.
Special characteristicsMud and Snow (M+S)M+S is a manufacturer's indication that the tread is intended to offer improved traction in mud and snow. By itself it is not the same as the tested 3PMSF winter certification.Suitable for electric vehiclesThis tyre is optimised for the weight, torque, rolling resistance and noise requirements of electric and hybrid vehicles. The marking does not mean that it can only be used on an EV.
Speed indexThe speed index indicates the maximum approved speed.V (max. 240 km/h)
Load indexThe load index indicates the maximum load capacity per tyre.93 (max. 650 kg)
Optimised Multi-Pitch Sequencing through Opti Pitch Technology
Vibration Control Technology
Block Edge Chamfer is applied to minimise the impact with the road surface to improve noise performance.
The iON ST AS offers a quiet & pleasant ride in all speed ranges.
The block angle was designed to improve noise performance by maintaining rigidity through HK noise simulation and rigidity analysis.
It offers enhanced noise performance by 1dB.
Tyre noise can be drastically reduced by applying Opti Pitch Technology. The iON ST AS has fine-tuned the number and size of pitches to let you hear what's important.
Electric motors are almost soundless which results in the driver hearing more noise from the tyres. With i Sound Absorber Technology, the iON ST AS offers a quiet and pleasant ride in all speed ranges.
The lateral groove structure that bends and gets wider towards the shoulder cause the lateral groove to contact the ground gradually, which reduces the air pumping noise.
Designed to absorb and reduce vertical impact shock when driving on road surfaces to provide a smooth, composed ride. Contact the ground gradually, which reduces the air pumping noise.
Tyres equipped on electric vehicles wear out approximately 20% faster with uneven wear than on ICE vehicles. iON ST AS achieves uniform contact pressure by optimising contact structure through Round Even Technology. The iON ST AS provides longer usage and less replacement.
Composed of advanced fillers and flexible rubber materials, ProDurable Compound provides higher mileage without compromising snow performance.
The iON ST AS achieved the highest grade of LRR performance by applying Opti Cure Technology which improves all parts of the tyre equally.
Thanks to iON innovative technology, the iON ST AS has pushed the limits to bridge the gaps between grip performance and noise / tread wear.
What the tyre markings mean
XL
Reinforced tyre (XL)XL means Extra Load. The tyre is reinforced and can carry a higher load than a standard tyre of the same size. Always follow the vehicle's specified load index and tyre pressure.
M+S
Mud and Snow (M+S)M+S is a manufacturer's indication that the tread is intended to offer improved traction in mud and snow. By itself it is not the same as the tested 3PMSF winter certification.
EV
Suitable for electric vehiclesThis tyre is optimised for the weight, torque, rolling resistance and noise requirements of electric and hybrid vehicles. The marking does not mean that it can only be used on an EV.
EU tyre label
Customer reviews
4.5
★★★★★★★★★★4.5 / 5(2)
Sanne W.2026-06-09
★★★★★★★★★★4.0 / 5
Nice upgrade
Driven about 3,000 km on these so far. Wear looks even and grip is consistent.
Tobias S.2026-05-17
★★★★★★★★★★5.0 / 5
Good all-rounder
Had them fitted last month. Wet grip is confidence-inspiring and they look the part too. Good value, though the sidewall is softer than my previous set. Stable and precise in summer heat.
Product Safety
This product meets the applicable European safety and labelling requirements. Observe the vehicle manufacturer's specifications for size, load index and speed rating.