177 votes
I have used rotors from R1 Concepts for over 15 years, on vehicles ranging from a Dodge Caravan, Chevy Trailblazer, to multiple BMWs and have never had an issue. They’re high quality and good price and I highly recommend them.
Its been just under a week after installing R1 Concept's Geomet drilled/slotted rotors and ceramic pads, I am impressed. Extremely quiet and smooth ride but once they're hot, they get aggressive.
I bought R1 Concepts front rotors for my Lexus IS250 at 85k miles. My car sits at 143k miles 5 years later and they have been the BEST rotors i have ever used. I chose their Geomet coating, and they are so rust resistant it is ridiculous. I have zero rust on the veins or hub of my brakes at all after all this time. I have used Powerstop rotors in the past on numerous vehicles, but I find the zinc coating will always rust after a few years. The R1 Concepts geomet coating is the best in my experience.
I have R1Concepts Geo-Carbon series rotors (2nd vehicle I’ve used them on), absolutely no complaints from my Giulia. I’m rocking them with Porterfield R4-S pads and the bite in dry is very nice and feels the same in wet.
R1 concepts slotted drilled rotors and pads along with some GoSpeed traction drop springs and alignment.
I’ve ran the R1 concepts D/S with OE Pads, steel lines, MOTUL 660 fluid. I’ve got them pretty hot on mountain road runs many times, no issues.
I just installed front axle drilled and slotted rotors, and new pads, all from R1 Concepts, and total cost shipped (Amazon) was $56. Tax, delivery, shims, everything but silicone grease.
Got a 2017 lancer and did the R1 concepts. Good results after only the first two weeks. Mind you! I had two seized calipers in the back and had to replace those as well. What is stated about drilled rotors is true about the cracking if you’re using them aggressively, I bought these specific ones because I read they have the better rating out of most and since I’m using them in the winter I’m not concerned with them getting too hot to crack (please correct me if my logic is not correct) but I assumed that since the vehicle was primarily being used for cold weather it would be best to go with a more reputable brand for safe stopping power.
Got the R1 concepts for the rotors and pads. Impressed by the braking power
I have R1 Concept rotors with the Powerstop Z26. Great combo.
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In March 2026, PartReview users have a positive opinion of R1 Concepts brake discs.
PR Score — 89 out of 100, based on 57 reviews and 177 votes. 49 positive reviews, 6 neutral reviews, 2 negative reviews. Average rating — 4.3 (out of 5). Vote balance: 159 up, 18 down.
In the ranking of the best brake discs this part is at position 6, behind Brembo and STOPTECH , but ahead of ATE and Raybestos.
Users also evaluated the qualities of R1 Concepts brake discs:
See which car brands and models owners choose R1 Concepts brake discs for. Below are car-specific ratings where this part is in the Top-3:
There are 21 comparison of R1 Concepts brake discs with other manufacturers on PartReview.
In particular, see which brake discs are better: R1 Concepts or MEYLE, R1 Concepts or OEM Honda, R1 Concepts or GALFER, Detroit Axle or R1 Concepts, R1 Concepts or Duralast .
