Brake discs R1 Concepts or GiroDisc

PartReview Score

Rank #6 in ranking

141

4.3

Braking

4.2

Noise

3.4

Vibration

3.5

Owners' choice:

Ford Focus

PR Score

Ranking

Votes

Reviews

Average rating

Properties

Car

PartReview Score

Rank #12 in ranking

4.4

Braking

4.4

Noise

0.5

Vibration

3.6

No data

Reviews

All

R1 Concepts

GiroDisc

R1 Concepts › Brake discs

OldFart710 30 Dec 2025, 02:11

Braking:

Rating 5.0

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.

Pros: high quality, good price

Vehicle: BMW

R1 Concepts › Brake discs

b___o___n___g 22 Dec 2025, 14:48

Braking:
Noise:

Rating 5.0

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.

Pros: quiet and smooth ride

Cons: get aggressive when hot

R1 Concepts › Brake discs

Sarionum 17 Dec 2025, 21:25

Braking:

Rating 5.0

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.

Pros: best rotors, rust resistant

Vehicle: Lexus

Mileage: 58000 km

R1 Concepts › Brake discs

somewhatdope 13 Dec 2025, 07:25

Braking:

Rating 5.0

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.

Pros: nice bite in dry/wet

Cons: none

Vehicle: Alfa Romeo Giulia

GiroDisc › Brake discs

fowtj 12 Dec 2025, 19:51

Braking:

Rating 4.0

I did mine pretty early solely because the OEM rotors were wearing like a vinyl record. Both the pads and rotors still had plenty of material—it was just a bad wear pattern. I went to Girodisc pads and rotors and have had them on happily ever since.

Pros: happy with Girodisc

Cons: bad wear pattern

R1 Concepts › Brake discs

MisterLee713 11 Dec 2025, 04:50

Braking:

Rating 5.0

R1 concepts slotted drilled rotors and pads along with some GoSpeed traction drop springs and alignment.

R1 Concepts › Brake discs

JTAC7 5 Dec 2025, 12:49

Braking:

Rating 5.0

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.

Pros: no issues

Vehicle: Ford Focus

GiroDisc › Brake discs

Soft-Holiday1696 1 Nov 2025, 21:23

Braking:

Rating 3.0

why not switch to 2 piece giro disc slotted rotors or ap racing j hooks

R1 Concepts › Brake discs

Mediocre-Macaroon409 21 Oct 2025, 02:58

Braking:

Rating 3.5

R1 concepts are fine not the best.

Pros: Acceptable performance

Cons: Not top tier

GiroDisc › Brake discs

flatlander757 3 Oct 2025, 03:42

Braking:

Rating 1.0

Rotors (Girodiscs 2pc) have already been confirmed to be seeing 1500F temps. Cracked annd needing replacement after 10-12 days on track.

Cons: cracked, short lifespan

Vehicle: Volkswagen Golf

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Which brake discs to choose — R1 Concepts or GiroDisc?

If choosing brake discs across many manufacturers, check the part ranking. If your choice is down to two brands, the PartReview part comparisons help.

We compare brake discs across these categories:

Comparison of brake discs R1 Concepts and GiroDisc

PR Score.
Overall ranking.
Vote balance.
Average rating.
Number of reviews.
Feature ratings.
Car owners’ choice.

Which brake discs are better — GiroDisc or R1 Concepts?

In March 2026 on PartReview, brake discs R1 Concepts were overall better than GiroDisc.

R1 Concepts received a PR Score of 89 out of 100, and GiroDisc scored 89 points.
R1 Concepts ranked 6 in the overall ranking, and GiroDisc ranked 12.
The average rating is higher for GiroDisc (4.4) than for R1 Concepts (4.3).
Brake discs GiroDisc have better feature ratings than R1 Concepts:
- Braking - owners believe, that this property for GiroDisc is better than R1 Concepts.
- Vibration - drivers claim, that this property for GiroDisc is outperforms R1 Concepts.
- Noise - reviews suggest, that this property for R1 Concepts is preferred to GiroDisc.

Which brake discs are more popular — R1 Concepts or GiroDisc?

In March 2026 on PartReview, brake discs R1 Concepts were overall more popular than GiroDisc.

By vote balance, brake discs R1 Concepts surpassed GiroDisc:

For R1 Concepts, the ratio of positive (159) to negative (18) votes is 141 vote.
For GiroDisc, the ratio of positive (92) to negative (11) votes is 81 vote.

By number of reviews, brake discs R1 Concepts surpassed GiroDisc:

For brake discs R1 Concepts there are 57 reviews: 49 positive, 6 neutral, 2 negative.
For brake discs GiroDisc there are 33 reviews: 28 positive, 4 neutral, 1 negative.

Which brake discs do car owners prefer — R1 Concepts or GiroDisc?

In March 2026, according to PartReview, brake discs R1 Concepts led more car-specific ratings than GiroDisc:

R1 Concepts are chosen by owners of cars such as: Ford Focus, and others.

Brake discs GiroDisc have not yet taken leading positions in car-specific ratings. You can help by adding a review and specifying your car.

Other comparisons of brake discs

If this comparison didn’t fully answer your question, there are many others on PartReview.

For example, comparisons of brake discs R1 Concepts with: Zimmermann, POWER STOP, Brembo, Centric, STOPTECH, OEM Volkswagen, EBC, Raybestos, ATE, Bosch.

Also available: comparisons of brake discs GiroDisc with: Zimmermann, POWER STOP, Brembo, Centric, STOPTECH, OEM Volkswagen, EBC, Raybestos, ATE, Bosch.

You can also see who is better among other brake discs manufacturers: Zimmermann or POWER STOP, Brembo or Zimmermann, Brembo or POWER STOP, Zimmermann or Centric, Zimmermann or STOPTECH.