Accelera 265/40 R21 105Y IOTA ST68 2024

Accelera Iota ST68 265/40 R21 105Y is a wide, road-focused SUV tyre designed for drivers who want stable handling, responsive steering and predictable behaviour on paved surfaces. This exact 265/40 R21 configuration is an XL tyre with a 105Y service designation, providing a maximum load capacity of 925 kg per tyre and a maximum rated speed of 300 km/h. Its 265 mm width and 40-series profile create a low-profile road setup suited to larger wheels and performance-oriented SUV applications.

About Accelera Iota ST68 265/40 R21 105Y

The Iota ST68 is an Accelera SUV-oriented tyre developed around road handling, directional stability and wet-surface water evacuation. For the exact 265/40ZR21 105Y XL configuration, manufacturer data specifies a 9.5-inch measuring rim, 271 mm section width, 745 mm overall diameter, 8.0 mm tread depth and 51 psi maximum inflation pressure. The XL construction is important because the 105 load index permits up to 925 kg per tyre. This combination makes the size particularly relevant to heavier SUVs and crossovers using 21-inch wheels.

Tread design and steering response

The Iota ST68 uses three interlocked tread block lanes with longitudinal grooves designed to move water away from the contact area. Exclamation-shaped sipes are incorporated into the tread to support wet traction, while the block arrangement contributes to directional stability and steering response. The tread is intended primarily for paved-road use, so drivers should not treat this pattern as a substitute for a dedicated all-terrain or off-road tyre.

Dry-road handling and cornering

The 265 mm section width gives the tyre a broad road footprint, while its 40-series profile limits sidewall movement compared with taller SUV configurations. This can produce a more immediate steering feel and controlled response during lane changes and cornering. The 105Y XL construction combines a 925 kg load capacity with a 300 km/h speed rating. Actual handling will still depend on alignment, suspension condition, inflation pressure, vehicle loading, wheel fitment and driving style.

Wet-road traction and braking

The Iota ST68's longitudinal grooves and additional sipes are designed to assist water evacuation and maintain tread contact on wet pavement. Accelera publishes a UTQG rating of 400 AA for the Iota ST68, consisting of a 400 treadwear grade, A traction rating and A temperature rating. European data for this exact size lists wet-grip class C and 68 dB external rolling noise with an A classification. These ratings are comparative classifications and should not be interpreted as guaranteed braking distances.

Ride comfort and everyday driving

The 40-series profile offers less sidewall cushioning than conventional higher-profile SUV tyres, so sharp potholes, broken pavement and expansion joints may be felt more clearly. On smoother urban roads and highways, the low-profile construction can provide a stable and controlled feel. The exact-size specification lists 68 dB external rolling noise, although actual cabin noise varies with road surface, suspension, wheel construction, tyre pressure and vehicle insulation.

Who should consider this Accelera?

Accelera Iota ST68 265/40 R21 105Y is suited to SUV and crossover drivers seeking a wide, reinforced road tyre with responsive steering and stable paved-road behaviour. It may not suit buyers prioritising maximum sidewall cushioning, serious off-road capability or dedicated winter performance. Run-flat capability is not indicated for this configuration. 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 265/40 R21 105Y XL specification.