Accelera 265/45 R21 108W IOTA ST68 2024

Accelera Iota ST68 265/45 R21 108W is a road-focused SUV tyre designed for drivers who want stable handling, responsive steering and predictable behaviour on paved surfaces. This exact 265/45 R21 configuration is an XL tyre with a 108W service designation, providing a maximum load capacity of 1,000 kg per tyre and a maximum rated speed of 270 km/h. Its 265 mm width and 45-series profile provide a practical balance between road stability, steering control and sidewall cushioning.

About Accelera Iota ST68 265/45 R21 108W

The Iota ST68 is Accelera's SUV tyre developed for comfortable road driving, directional stability, wet-weather traction and year-round use. For the exact 265/45ZR21 108W XL configuration, manufacturer data specifies a 9.0-inch measuring rim, 266 mm section width, 771 mm overall diameter, 8.4 mm tread depth and 51 psi maximum inflation pressure. The XL construction is important for this size because the 108 load index allows up to 1,000 kg per tyre. This specification is aimed at larger SUVs and 4x4 vehicles using 21-inch wheels.

Tread design and steering response

The Iota ST68 uses three interlocked tread block lanes designed to support directional stability and quick steering response. Its main longitudinal grooves are intended to clear water from the contact area, while exclamation-shaped sipes help break through thin layers of water and maintain traction during wet conditions. The tread design is road-oriented and suited to paved surfaces rather than demanding off-road terrain. Published product listings also describe the pattern as asymmetric, although tread appearance can vary by size or homologation.

Dry-road handling and cornering

The 265 mm section width provides a broad contact footprint, while the 45-series profile offers more sidewall cushioning than lower-profile performance configurations. This combination can provide a planted feel while retaining useful steering response during lane changes and moderate cornering. The 108W XL construction combines a 1,000 kg load capacity per tyre with a 270 km/h speed rating. Actual handling depends on alignment, suspension condition, tyre pressure, vehicle loading, wheel fitment and driving style.

Wet-road traction and braking

Water evacuation is a central part of the Iota ST68 tread design. The main grooves help move water away from the road-contact area, while the exclamation-shaped sipes are designed to maintain traction on wet pavement. Accelera publishes a UTQG rating of 400 AA for the Iota ST68, representing a 400 treadwear grade with A traction and A temperature classifications. The exact-size European specification lists wet-grip class C. These classifications are comparative ratings and should not be interpreted as guaranteed stopping distances.

Comfort, noise and everyday driving

The 45-series sidewall gives this Accelera a useful amount of cushioning compared with very low-profile 30- or 35-series tyres, making it more suitable for ordinary urban roads and highway travel. Accelera's exact-size specification lists 68 dB external rolling noise with an A noise classification. The tread's diagonal elements are also described as helping reduce road noise. Actual cabin comfort and noise will vary with suspension condition, road surface, tyre pressure, wheel construction and vehicle insulation.

Who should consider this Accelera?

Accelera Iota ST68 265/45 R21 108W is suited to SUV and 4x4 drivers seeking a reinforced road tyre with stable handling, responsive steering and wet-road water evacuation. It may not be the preferred option for serious off-road use, dedicated winter driving or buyers specifically requiring run-flat mobility. For customers using Dwbtyres to buy car tyres in UAE, the vehicle placard and existing sidewall markings should be checked before ordering. Buyers comparing Accelera Tyres should match the complete 265/45 R21 108W XL specification.