The Radar Dimax R8 is an economy performance summer tyre with some favourable owner accounts of value, dry handling and wear. Poor wet grip, long tested braking distances and road-noise complaints are its main limitations.
The quick answer
Owners say57%from 40 owner reviews49% would buy againRead the reviews
Built from every independent test result and vetted owner review we hold for this tyre - the evidence is all further down the page. Data updated September 2026.
Across the 1 wet-braking test it has featured in, the Radar Dimax R8 stops 18.2% longer than premium rivals, 11% longer than mid-range rivals and 2.5% longer than budget rivals. It has a Tyre Reviews wet score of 23/100, and owners rate it 5/10 in the wet from 40 reviews.
How good is the Radar Dimax R8 in the dry?
Across the 1 dry-braking test it has featured in, the Radar Dimax R8 stops 8.9% longer than premium rivals, 4.2% longer than mid-range rivals and 0.5% longer than budget rivals. It has a Tyre Reviews dry score of 29/100, and owners rate it 6.7/10 in the dry from 40 reviews.
What do owners say about the Radar Dimax R8?
Across 40 owner ratings the Radar Dimax R8 averages 57%. Owners rate Dry Grip highest at 6.7 out of 10 and Wet Grip lowest at 5. 7 of those reviews come from owners past 10,000 miles. 43% of owners score it 70% or better.
What is the Radar Dimax R8's EU tyre label rating?
Across its range, the Radar Dimax R8 most commonly carries EU label ratings of C for fuel efficiency, B for wet grip and 72 dB for noise.
How comfortable and quiet are the Radar Dimax R8?
Owners rate the Radar Dimax R8 5.9 out of 10 for comfort and noise across 37 reviews.
More questions about the Radar Dimax R8(7)
How well do the Radar Dimax R8 wear, according to owners?
Owners rate the Radar Dimax R8 6.5 out of 10 for wear across 37 reviews. 7 of those reviews come from owners past 10,000 miles, and the typical review covers 2,000 miles.
Would owners buy the Radar Dimax R8 again?
49% of owners say they would buy the Radar Dimax R8 again, based on the 37 owner reviews that answered the question. 27% of them gave it the highest possible answer.
What do owners say about the Radar Dimax R8's wet grip?
Of the 37 owner reviews analysed for the Radar Dimax R8, 14 mention wet grip: 3 praise it (confident wet grip) and 11 criticise it (weak wet grip). One owner wrote: "do not take on wet motorways!!". Read those reviews
What do owners say about the Radar Dimax R8's road noise?
Of the 37 owner reviews analysed for the Radar Dimax R8, 13 mention road noise: 4 praise it (quiet) and 9 criticise it (noisy). One owner wrote: "the tyre roar became a joke!". Read those reviews
What do owners say about the Radar Dimax R8's tread life?
Of the 37 owner reviews analysed for the Radar Dimax R8, 9 mention tread life: 7 praise it (long-lasting) and 2 criticise it (wears quickly). One owner wrote: "I've done 25000 since buying the car, mainly motorways, and I still have 5mm easy all round". Read those reviews
Has the Radar Dimax R8 been replaced?
The Radar Dimax R8 has been replaced by the Radar Dimax R8+.
What sizes does the Radar Dimax R8 come in?
The Radar Dimax R8 is available in 30 sizes, ranging from 205-275/30-60 R17-20.
Wet grip and noise are the main reservations about the Radar Dimax R8, with 11 and nine complaints among 37 reviews, against three and four favourable comments. Overall opinion is divided: 15 reviews are positive, nine neutral and 13 negative, averaging 52.5%. Smaller groups praise value, dry grip and dry handling, with six favourable mentions each. Tread life attracts seven positive comments against two negative, including later-use accounts of substantial tread remaining. A minority also describe instability or sidewall damage, but some damage accounts are duplicated and do not establish a cause. The more favourable dry-road and wear experiences therefore coexist with repeated concerns in rain and about refinement.
What owners mention most counted across 37 reviews
Tap one to read only the reviews that mention it.
Owner ratings averaged from 40 ratings
Owner score57%
Dry Grip67%
Wear65%
Comfort59%
Handling54%
Road Feedback53%
Wet Grip50%
Featured reviews
Most helpful 90%
“I could not find any tyres with this price range for my tyre size 255/35R21. Radar Dimax R8 has a great size range. At this price they are unbeatable in value. This is my second purchase. Will continue with this brand.”
“I put them on the rear of my 330i and as soon as you go above 65mph the back end becomes twitchy, its almost like they deform to a oval shape and the car shakes left and right, honestly not worth buying!”
“Dealer fitted these new when I bought a used Lexus LS430. Very quiet and grippy when new, but less good as they became worn. With 280 bhp on the rear wheels they became very slippery in the wet after about 25000 miles...”
Had a pair fitted on a cmax. Fine if the roads are smooth but 2 months in pothole claimed the nearside tire. Replaced like for like then 2 weeks later same time develops a leak again poor British road surface. Doesn't seem to stand up to similar conditions as other similar priced tyres I have had so will stay well clear of these in the future.
I could not find any tyres with this price range for my tyre size 255/35R21. Radar Dimax R8 has a great size range. At this price they are unbeatable in value. This is my second purchase. Will continue with this brand.
Check out how the BEST all seasons tyres perform against premium summer and winter tyres!
This is a first for me to buy budget tires.
I have to say i am very impressed with the grip and the handling and the comfort much better than the Bridgestone they have replaced.
I don't do reviews but when i was buying these i looked at the reviews and it was a bit mixed, so all i have to say is i have put two tyres on my BMW530d for less than the cost of one from a brand name, and they are brilliant.
i can't tell you how happy i am with them
Which tyres do you drive?
Researching the Radar Dimax R8? Rate the tyres you actually drive - and help the next buyer choose.
Radar Dimax tyres did well on my super super low 07 Subaru Forester.
I drive the car hard and they handled well and I used them right up until they were totally bald. Maybe the treadwear could have lasted a bit longer but I'll take that for how well they did. Cheers
Only do about 4000miles a year. The tyres were brand new when I bought the car I’ve done 12000 miles & thought all was good until yesterday when I got a flat tyre warning - on checking there was a 10 inch rupture on the inside wall of the rear near side . The other is showing signs of cracking on so it’s going to be replaced tomorrow. I certainly wouldn’t have again.
I put them on the rear of my 330i and as soon as you go above 65mph the back end becomes twitchy, its almost like they deform to a oval shape and the car shakes left and right, honestly not worth buying!
BMW 320d GT. changed to these on the two rear tyres, just before a road trip from Ireland to Berlin. Oh dear, these are clearly not suited. The car is twitchy and swimmy at anything over 100kmh. Have to keep two hands on the wheel and concentrate to keep it going in a straight line. It’s almost divergent. Really unnerving. At Autobahn speeds of over 160kmh it’s a real white knuckle ride.
Other peeps are clearly having a different and good experience with these but I can say unequivocally that they are not to be used on a 320d GT.
I put theses tyres on as a cheap alternative and cost effective.
They are awful past 50mph in corners and the TC light flickers at the hint of a bend. I am having them removed and replaced for safety concerns.
If all you use them for is little town journeys then they'll be fine - do not take on wet motorways!!
Had these on my 2.5l Turbo Ford Mondeo for last four years, absolutely no issues with them at all; a great, cheap all round tyre. And I have been known to drive in a spirited way sometimes!
