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Radar Dimax R8 Plus Tyre

Radar Dimax R8+
285/40 R21 Y (109)

Need a different size?
4.4/5
(1602 reviews)
View product details
How many tyres do you need?
Mail order priceiMail order price includes: Tyres delivered to your home or workplace. Delivery cost calculated at the basket.
£126.14
Fully fitted priceiFully Fitted price includes:VAT, delivery, fitting, balancing and disposal charges.
£149.54

Product description & features

This high performance tyre is optimised for high speeds, giving motorists excellent grip and both wet and dry conditions.

The Dimax R8+ is also suitable for EVs, with EV compatible size variants featuring a special low rolling resistance compound.

The Radar Dimax R8+ is available in 17-inch to 23-inch rim sized tyres.

Great Handling at High Speeds

An asymmetric tread design features advanced silica formulated tread compound technology, enhancing the tyre’s high performance capabilities.

This helps improve handling and steering responsiveness at higher speeds.

Strong Wet Grip Performance

An optimised tread compound along with four wide longitudinal grooves gives the tyre an enhanced wet grip performance.

This is through the work of the compound and grooves that both contribute to effective water drainage, making the tyre more stable in wet conditions.

Dimax R8+ Tyre Variants

The Radar Dimax R8+ is currently manufactured in 2 variants of tyre:

Please note: before you select your tyres, ensure that the tyre size that you intend to order are the correct variant and matches your vehicle type.

The Radar Dimax R8+ - 285/40 R21 Y is a summer tyre.

Ratings & Reviews

There are
1602
reviews of the Radar Dimax R8+

1602
total ratings, with
522
review comments
Overall rating
4.4/5
(1602 reviews)
5 star
64%
4 star
28%
3 star
3%
2 star
2%
1 star
2%
Overall rating of my tyres
4.4/5
I would buy the same tyres again
4.4/5
The car feels better to drive
3.9/5
The tyres were value for money
4.4/5
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Tyre review for Radar Dimax R8+ 285/40 R21 Y
Verified Purchase
Driver’s 2nd review
  • Reviewed on: 26/09/2024
  • Approx. miles driven: 7,500
They have been very good in all weather and road conditions. I would purchase these again with out a second thought
Graham T
Driver’s 1st review
  • Reviewed on: 21/12/2023
  • Purchased on: 28/09/2023
  • Approx. miles driven: 1,500
I now have a full set on my car and very happy with their performance and grip
Graham T
Tyre review for Radar Dimax R8+ 275/35 R19 Y
Verified Purchase
  • Reviewed on: 21/08/2025
  • Purchased on: 29/05/2025
  • Approx. miles driven: 4,000
Very good indeed, road noise acceptable, grip acceptable
Trevor Robert M
Tyre review for Radar Dimax R8+ 235/45 R18 Y
Verified Purchase
Driver’s 2nd review
  • Reviewed on: 18/08/2025
  • Approx. miles driven: 8,500
Ideal in all weather conditions and wearing very well
Sheila B
Driver’s 1st review
  • Reviewed on: 11/11/2024
  • Purchased on: 19/08/2024
  • Approx. miles driven: 1,000
Very satisfied with them in dry and wet conditions. Yet to see how they cope in the ice and snow!
Sheila B
Tyre review for Radar Dimax R8+ 225/45 R19 Y
Verified Purchase
  • Reviewed on: 17/08/2025
  • Purchased on: 24/05/2025
  • Approx. miles driven: 700
Haven't driven on snow or ice yet but all other weather conditions driving well.
Jeff S
Tyre review for Radar Dimax R8+ 225/45 R18 Y
Verified Purchase
Driver’s 2nd review
  • Reviewed on: 14/08/2025
  • Approx. miles driven: 15,500
They seem decent and not had any problems
Andrew T
Driver’s 1st review
  • Reviewed on: 07/11/2024
  • Purchased on: 03/06/2024
  • Approx. miles driven: 4,000
Tyre review for Radar Dimax R8+ 255/30 R19 Y
Verified Purchase
Driver’s 2nd review
  • Reviewed on: 14/08/2025
  • Approx. miles driven: 9,000
These are perfect instead of going through a premium tyre every year these are still in excellent shape and going strong. No noticeable difference in grip or performance
Philip T
Driver’s 1st review
  • Reviewed on: 07/11/2024
  • Purchased on: 23/05/2024
  • Approx. miles driven: 4,000
So much better traction than the supposed premium brand
Philip T
Tyre review for Radar Dimax R8+ 255/45 R20 Y
Verified Purchase
Driver’s 2nd review
  • Reviewed on: 14/08/2025
  • Approx. miles driven: 11,500
The tyres are very good but just haven’t worn particularly well. I’ve only driven around 10k miles and sadly need replacing already.
Floris P
Driver’s 1st review
  • Reviewed on: 07/11/2024
  • Purchased on: 11/05/2024
  • Approx. miles driven: 4,000
These tyres are great value for money.
Floris P
Tyre review for Radar Dimax R8+ 315/35 R20 Y
Verified Purchase
  • Car make: BMW
  • Car model: X5
  • Reviewed on: 22/07/2025
  • Purchased on: 25/04/2025
  • Approx. miles driven: 1,000
Yes they are really great there’s for the money would definitely recommend
Natalie G
Tyre review for Radar Dimax R8+ 245/40 R20 Y
Verified Purchase
  • Reviewed on: 09/07/2025
  • Purchased on: 13/04/2025
  • Approx. miles driven: 2,500
Tyres are good so far . Can’t tell the difference between them and the premium brand they have replaced. Little bit noisy on motorway.
Plamen K
Tyre review for Radar Dimax R8+ 205/40 R18 Y
Verified Purchase
  • Reviewed on: 08/07/2025
  • Purchased on: 04/04/2025
  • Approx. miles driven: 2,500
Very well good performance
Steve V
Tyre review for Radar Dimax R8+ 315/35 R20 Y
Verified Purchase
  • Car make: BMW
  • Car model: X5
  • Reviewed on: 04/07/2025
  • Purchased on: 01/04/2025
  • Approx. miles driven: 4,000
Brilliant the car is so much quieter and smoother to drive
Shaun P
Tyre review for Radar Dimax R8+ 245/40 R20 Y
Verified Purchase
  • Reviewed on: 30/06/2025
  • Purchased on: 05/04/2025
  • Approx. miles driven: 2,500
They are very sure footed and the car corners very well indeed. They are also very good in poor weather too.
Chris C
Tyre review for Radar Dimax R8+ 225/45 R19 Y
Verified Purchase
  • Reviewed on: 27/06/2025
  • Purchased on: 03/04/2025
  • Approx. miles driven: 800
Great the same all around
David B
Tyre review for Radar Dimax R8+ 275/35 R22 Y
Verified Purchase
  • Reviewed on: 23/06/2025
  • Purchased on: 20/03/2025
  • Approx. miles driven: 2,000
They’ve performed well & half the price of the previous tyres I’d bought with not much difference in performance. Would definitely buy again in future
Ste S
Tyre review for Radar Dimax R8+ 245/35 R18 Y
Verified Purchase
  • Reviewed on: 23/06/2025
  • Purchased on: 20/09/2024
  • Approx. miles driven: 9,000
Not different than the Bridgestone but its only one tyre replaced so hard to tell
Aqib A
Tyre review for Radar Dimax R8+ 255/30 R19 Y
Verified Purchase
  • Reviewed on: 20/06/2025
  • Purchased on: 27/03/2025
  • Approx. miles driven: 1,500
All round ok ,slight rim leak ,still not tested on motorway
Colin W
Tyre review for Radar Dimax R8+ 245/40 R19 Y
Verified Purchase
  • Reviewed on: 12/06/2025
  • Purchased on: 20/03/2025
  • Approx. miles driven: 3,500
Very pleased so far, wearing well
Trevor Robert M
Tyre review for Radar Dimax R8+ 255/30 R19 Y
Verified Purchase
  • Reviewed on: 03/06/2025
  • Purchased on: 03/03/2025
  • Approx. miles driven: 2,000
The tyres are on the rear so far they feel ok . They have not been on motorway yet so not tested yet over 66 mph
Colin W
Tyre review for Radar Dimax R8+ 205/40 R18 Y
Verified Purchase
  • Reviewed on: 03/06/2025
  • Purchased on: 07/03/2025
  • Approx. miles driven: 300
Good performance, not too noisy on motorways ok grip in wet. Great price!
Paul W
Tyre review for Radar Dimax R8+ 205/40 R18 Y
Verified Purchase
  • Reviewed on: 17/05/2025
  • Purchased on: 14/02/2025
  • Approx. miles driven: 1,500
Not confident with the grip on the new tyres. Don’t seem to want to stick to the road
Helen E
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