View more tyres in this size
Sonix WINTERXPRO 999 Tyre Image
  • C
    Fuel Efficiency
    Fuel Efficiency / Rolling Resistance: C

    How much fuel the tyre uses as it rolls. Graded A to E, where A is the most efficient and E the least.

  • D
    Wet Grip
    Wet Grip / Braking Performance: D

    How well the tyre stops in the wet. Graded A to E, where A is the shortest stopping distance. Each grade is worth roughly 3 metres, about a car length.

  • B71 dB
    External Noise
    Noise Emission / Exterior Noise: B (71 dB)

    How loud the tyre is from outside the car, measured in decibels. Graded A to C, where A is the quietest.

sonix.png

Sonix WINTERXPRO 999 275/45R21 110H XL

5.0/5
(1 reviews)
  • Tick Icon Car
    Car tyre:

    Designed for cars, rather than vans, 4x4s or commercial vehicles.

  • Tick Icon Reinforced (XL)
    Extra Load or Reinforced tyres:

    A stronger sidewall lets this tyre carry more weight than a standard tyre of the same size. Marked XL on the sidewall.

  • Tick Icon Winter
    Winter tyres:

    Designed for temperatures below 7°C. Summer tyre rubber hardens in the cold and loses grip, while a winter compound stays soft and holds the road in cold, wet and snowy conditions.

Fully FittedFromBest choice
£15232
  • Fitted at a local tyre centre
  • Wheel balancing included
  • New valve & disposal included
Mail OrderFrom
£12946
  • Delivered to your door
  • Fit at a local garage
  • Great value
Safe & secure checkoutMultiple payment options
Product description & features

An added benefit of the SONIX WINTERXPRO 999 is its rubber compound. Constructed for cold weather, it stays flexible whilst the temperature decreases. Compared to regular summer rubber compounds, the WINTERXPRO 999 will outperform those compounds on wet roads and light snow. The WINTERXPRO 999 has an assembly of fine, dense, 3D slits on its surface, which generate additional edges for snow and compacted snow driving and pulling away. The wide slits between the tread sections help the tyre transport water and slush away from the patch of the tyre that is in contact with the road surface. The casing has been designed to help the driver experience control and comfort for daily driving, and engineered to aid in the reduction of tread vibration along with road noise.

The WINTERXPRO 999 is also designed with rubber that retains grip in changing conditions, and is perfect for commuting and driving long distances during winter. Additional stability is offered for settled snow with the WINTERXPRO 999 tread sections. You can find Sonix WINTERXPRO 999 winters online at Tyres.co.uk.

Highlights

  • Flexible cold-weather rubber
  • Fine 3D slits for snow
  • Wide slits clear water and slush

Sonix WINTERXPRO 999 275/45R21 110H XL Tyre Reviews

There are 1 reviews of the Sonix WINTERXPRO 999 275/45R21 110H XL
Overall rating
5.0/5
5 star
100%
4 star
0%
3 star
0%
2 star
0%
1 star
0%
Car make: Mercedes
Car model: AMG
By: Jaymee Inson
Tyre review for Sonix WINTERXPRO 999 275/45R21 110H XL
I have never had such a good driving experience in winter. I have so much more confidence when driving in snow and ice because these winter tyres have excellent grip. They are also quieter than I thought they would be. I look forward to seeing how they will perform as winter continues.