The Radar Dimax R8+ is a summer ultra-high-performance (UHP) tire for cars and SUVs, engineered to deliver strong wet and dry grip, sporty handling, and everyday comfort, with available run-flat and select EV-compatible sizes.
RADAR DIMAX R8+
245/30 R20
Y
(97)
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Tourism
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XL
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Reinforced
RADAR DIMAX R8+ Description
- Wet grip and safety: four wide longitudinal grooves help resist hydroplaning, while a silica-formulated compound is designed to enhance traction in wet conditions.
- Sporty, precise handling: an asymmetric tread pattern and solid center rib are designed for quicker steering response and high-speed stability.
- EV compatibility + efficiency: select EV-compatible sizes use a low rolling-resistance compound designed to support range and improve stability for heavier, high-torque EVs.
- Peace of mind: a 55,000 km limited treadwear warranty plus road-hazard coverage (terms apply), supported by a wide line-up that includes run-flat fitments.
Radar Dimax R8+: a UHP summer tire for cars and SUVs, built for wet confidence and sporty control
The Radar Dimax R8+ is a summer performance tire designed for ultra-high-performance (UHP) passenger cars and SUVs that demand a more engaging, responsive driving feel. Its goal is a balance many drivers want from a modern UHP tire: strong dry grip, reassuring wet-road confidence, sporty handling, and a level of comfort that makes sense for daily use. The range is also notable for its broad fitment coverage, including many run-flat sizes and select sizes labeled EV Compatible, allowing drivers to match the tire to today’s high-powered vehicle needs.
Sporty road manners: responsive steering and high-speed stability
In the UHP category, stability and precision are the key benchmarks. The Dimax R8+ uses an asymmetric tread design paired with a solid center rib featuring sipes and grooves, aiming to support steady straight-line tracking and confident cornering response. The intended result is a more connected, predictable feel during lane changes, corner entry, and highway driving—especially for vehicles that benefit from a tire designed to stay composed as speeds rise.
Wet performance: drainage, hydroplaning resistance, and confidence in the rain
Summer rain can change grip levels quickly. The Dimax R8+ features four wide longitudinal grooves designed to evacuate water efficiently and improve resistance to hydroplaning. It also uses an advanced silica-formulated tread compound aimed at enhancing wet traction. For drivers, the goal is clear: more reassuring braking feel and steadier handling when pavement is slick, temperatures fluctuate, or standing water appears unexpectedly.
EV-compatible sizes: range-minded efficiency and stability for heavier vehicles
Electric vehicles place unique demands on tires due to higher curb weight and instant torque. Select Dimax R8+ fitments are offered as EV Compatible sizes that use a low rolling-resistance compound designed to help enhance EV driving range. That compound is also described as providing additional stiffness, which supports a more stable ride for heavy, powerful EVs. In addition, the EV-compatible sizes are positioned to deliver enhanced wet grip for a safer, more assured driving experience.
Comfort and warranty value: performance you can live with every day
Performance is more enjoyable when the ride stays refined. The Dimax R8+ highlights an optimized rib design and tread pitch sequencing intended to deliver a quieter, more comfortable ride. For long-term value, the range lists a 55,000 km limited treadwear warranty along with road-hazard coverage (terms apply). By combining sporty UHP handling, wet-road confidence, run-flat availability, and EV-compatible efficiency, the Dimax R8+ is positioned as a complete summer performance solution for modern cars and SUVs.
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All Season Tires
Discover how all-season tires provide a practical compromise for year-round driving, especially in regions with milder winters.
Technical data
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Garage Delivery Most popularAt a local garage or mobile fitter, additional fitment fee applicable at garageMore than 1300 garages in Canada
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Home DeliveryDelivered to your home or work
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Local Tire Installation Available Across Canada
Certified professionals across Canada ensure a pefect fit at your local garage, at home or work, every time. Find your nearest local garage
About Blackcircles.ca
Since its launch in Canada, Blackcircles.ca has become a trusted reference for buying tires and wheels online. With a vision focused on simplicity, transparency, and innovation, we have built a network of more than 1500 partner service centers across the country. Our goal is clear: to connect local expertise with a modern platform and provide Canadian drivers with a convenient and reliable experience tailored to their needs. 
FAQ
You can check the information directly on the sidewall of your current tires (e.g., 205/55R16) or use our vehicle search tool by entering the make, model, and year. Click here to check your tire size.
Summer tires are designed for warm temperatures and provide excellent performance on dry or wet roads. Winter tires are mandatory in Quebec from December 1 to March 15 and offer superior grip on snow and ice. All-season tires are a practical compromise, but they do not match the performance of specialized tires in extreme conditions.
The price shown is for the purchase of the tire only. You can add installation directly at checkout and choose a partner garage near you.
Delivery usually takes 3 to 5 business days. The exact timeframe will be displayed at checkout depending on your address.
All tires are covered by the manufacturer’s warranty. In addition, Blackcircles offers a 2-year road hazard protection free of charge under certain conditions.
Absolutely. During checkout, you can select a partner service center in your area and your tires will be shipped directly there for installation.