SKU: 17438177559

034Motorsport 2-Piece Floating Rear Brake Rotor 370mm Upgrade Audi B9 RS4/RS5 - RED

Sale price$1079.99 Regular price$1199.99
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Ships within 48 hours · Estimated delivery Sep 19 - Sep 24

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Description

034Motorsport 2-Piece Floating Rear Brake Rotor 370mm Upgrade Audi B9 RS4/RS5 - RED034 Motorsport 2 Piece Floating Rear Brake Rotor 370mm Upgrade Audi B9 RS4 RS5 RED. The 034Motorsport 370x22mm 2 Piece Floating Rear Brake Rotor Upgrade for B9 B9. 5 Audi RS4 RS5 is a complete replacement brake rotor and caliper carrier kit, designed to work flawlessly with the factory rear calipers. Weighing in at approximately 15. 1lbs, each rotor reduces rotational weight by 1. 6lbs on each corner over the factory 16. 7lbs rotors, and increases

034 Motorsport - 2-Piece Floating Rear Brake Rotor 370mm Upgrade Audi B9 RS4/RS5 - RED.

The 034Motorsport 370x22mm 2-Piece Floating Rear Brake Rotor Upgrade for B9/B9.5 Audi RS4/RS5 is a complete replacement brake rotor and caliper carrier kit, designed to work flawlessly with the factory rear calipers. Weighing in at approximately 15.1lbs, each rotor reduces rotational weight by 1.6lbs on each corner over the factory 16.7lbs rotors, and increases rotor diameter from 330mm to 370mm! While reducing weight, the rotor retains proper thermal mass in the rings to adequately capture heat, while utilizing 36 directionally curved vanes to forcefully flow cool air through the rotor to dissipate heat.

The 034Motorsport 370x22mm 2-Piece Floating Rear Brake Rotor Upgrade is available in Black & Red for the Audi B9 RS4/RS5.

The 034Motorsport 370x22mm 2-Piece Floating Rear Brake Rotor Upgrade for Audi B9 RS4/RS5. is a complete replacement brake rotor and caliper carrier kit, designed to work flawlessly with the factory rear calipers. Upgrading your rotors will increase overall braking performance in street, track, and HDPE driving conditions, as they keep your brakes cool and strong all day long!

Weighing in at approximately 15.1lbs, each rotor reduces rotational weight by 1.6lbs on each corner over the factory 16.7lbs rotors, and increases rotor diameter from 330mm to 370mm! While reducing weight, the rotor retains proper thermal mass in the rings to adequately capture heat, while utilizing 36 directionally curved vanes to forcefully flow cool air through the rotor to dissipate heat.

Upsizing the rear rotor size from 330mm to 370mm repositions the caliper further outward, increasing its leverage on the rotor. With this added leverage, the factory rear caliper can generate more braking force at the rear axle. This not only improves rear-end braking performance, but also helps take stress off the front brakes during hard stops. The result is a more balanced braking system with better stability, reduced front brake overload, and enhanced overall stopping confidence.

The central hat portion of the 034Motorsport rotor is made of 6061-T6 aircraft specification aluminium. The disc is constructed out of a proprietary metal alloy that can withstand immense braking temperatures while holding form. The rotor utilizes 36 directionally curved vanes to forcefully flow cool air through the rotor to dissipate heat.

The face of the rotor utilizes J-Slot slots to clean the pad surface of contaminants and allows hot pad outgassing.

The rotor and hat have a floating mount system that utilizes high-strength alloy steel bobbins. The pins take the load from braking actions while maintaining the axial and radial float between the hat and disc, allowing for safe expansion and contraction from heat.

Fitment:

Audi RS4 2018-Present B9/B9.5 2.9 TFSI
Audi RS5 2018-Present B9/B9.5 2.9 TFSI


Features:

  • Lightweight Construction (15.1lb 370mm 034Motorsport Rotor vs. 16.7lb 330mm OE Rotor)
  • Floating, 2-Piece Design
  • Aerospace Grade Aluminium Hats with Type III Hard Anodizing**
  • CM-250 Special Alloy Rotor Rings
  • J-Slot Slotted Friction Face
  • OEM Fitment & Functionality
  • 36 Curved Vanes Force Cooling Air through Brake Disc
  • Floating Bobbins Mounting System
  • Replaceable Rotor Rings
  • Lower Long-term Maintenance Cost

Part Number Interchange for A/S Models:

  • 8W0 615 601 E
  • 8W0 615 601 K

Part Number Interchange for RS4/RS5:

  • 8W0 615 601 G

What's Included:

  • 034Motorsport 2-Piece Floating Rear Rotor Pair
  • Caliper Carrier Conversion Brackets
**Please Note: Type III hard anodizing of aluminium is considered as a functional surface coating process. While we always aim for colour consistency, colour variations may exist from batch to batch due to the nature and variables in the anodizing process.

The installation of your 2-Piece Floating Rear Brake Rotor 370mm Upgrade for Audi B9 RS4/RS5 is a straight forward process that will take approximately 1.5 to 2 hours to complete. You can access our detailed installation guide by clicking the link below.

Download the 2-Piece Floating Rear Brake Rotor 370mm Upgrade for B9/B9.5 Audi A4/S4, A5/S5, Q5/SQ5, & RS4/RS5 Install Guide

Recommended product: Audi B9 RS4/RS5 ECU tuning

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 17438177559

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4.0 ★★★★★
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R
Verified Purchase
Rayven Z
Bozeman, US
★★★★★ 5
Great quality and perfect for home workouts!
Style: Rack with 3 Pairs (3, 5, and 8 Pound)
I’m really happy with this dumbbell set. The weights are clearly labeled (3 lb, 5 lb, and 8 lb), which makes it super convenient to switch between exercises. The neoprene coating feels comfortable in hand and provides a good grip, even during longer workouts. The storage stand is a big plus—it keeps everything organized and saves space, which is perfect for a small home gym. The colors are also nice and make it easy to quickly grab the weight you need. Overall, this is a great set for beginners or anyone looking to add light strength training to their routine. Highly recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2026
D
Verified Purchase
DCat
Bozeman, US
★★★★★ 5
I’m A PT AND USING THEM IN MY CLINIC. PLS READ HONEST AND THOROUGH REVIEW.
Style: 15 Pound, Pair
I have been a PHYSICAL THERAPIST FOR 30 YEARS and I BOUGHT THESE FOR MY CLINIC. THESE WEIGHTS ARE COVERED IN A GRIPPING MATERIAL, NEOPRENE, MAKING IT COMFORTABLE and EASIER TO USE, ALLOWS YOU TO NOT LOSE YOUR GRIP, and IT IMPROVES THE SAFETY OF THE USER. I WILL BE BUYING THE 12&20 lb sets! THE VALUE FOR YOUR MONEY IS WONDERFUL!! AMAZON BASICS REALLY CAME THROUGH. It DID NOT INCLUDE AN INSTRUCTION GUIDE TO USE WEIGHTS SAFELY AND EFFECTIVELY. STELLAR FORM IS ALWAYS ESSENTIAL. MY WEIGHTS WENT UP TO 10 POUNDS, SO I DEFINITELY NEEDED ADDITIONAL WEIGHTS for those who can SAFELY TRANSITION . I MAINLY WORK AS A MANUAL THERAPIST …USING ONLY MY HANDS, AND MY BRAIN. TO DIAGNOSE AND TREAT ACCORDINGLY. (**ANYONE WHO HAS BEEN TO PT KNOWS THIS KIND OF ONE ON ONE TREATMENT IS UNHEARD OF**) I IMPLEMENTED MYOFASCIAL RELEASE, TRIGGER POINT THERAPY, DEEP TISSUE MASSAGE, AND APPROPRIATE STRETCHING AND EXERCISE . ONCE PATIENTS WERE ABLE, I INITIATED THERAPEUTIC EXERCISE. I WAS GETTING SO MANY REFERRALS THAT I MOVED FROM MY SMALL SPACE AND GOT A LARGER SPACE THAT LOOKS LIKE A TYPICAL PT CLINIC. I STILL EMPLOY ONE ON ONE TREATMENT, NO JUGGLING SEVERAL PATIENTS IN AN HOUR. I HAVE HIRED HELP TO ASSIST PATIENTS WITH EXERCISE AND STRETCHING. I PURCHASED TWO ADDITIONAL SETS ITHE SET IT I DID TO FIRST CHECK THEM OUT. I ADORE THESE AND HAVE SINCE ORDERED OTHER SETS. I LOVE TO WORKOUT AND I NEEDED TO USE THESE WEIGHTS MYSELF!! THERE ARE ALSO PATIENTS OF MINE WHO WILL PROGRESS TO THESE AS WELL. I AM SUPER IMPRESSED WITH THESE WEIGHTS AND CANNOT WAIT TO RECEIVE MY TWO OTHER SETS!! YOU WILL NOT BE DISAPPOINTED. EVEN IF YOU SWEAT, YOU ARE STILL ABLE TO HOLD ONTO THESE WEIGHTS COMFORTABLY AND SAFELY. SAFETY IS KEY, ALWAYS. I WAS EXTREMELY DELIGHTED THAT THEY ARE SOLD AS A SET BECAUSE MANY ARE SOLD SEPARATELY. THEY FIT PROPERLY ON A UNIVERSAL WEIGHT STAND, SO THEY ARE VERY EASY TO STORE. I CANT WAIT TO GET MY OTHER SETS! IT IS REALLY SAFE AND COMFORTABLE TO USE THESE WEIGHTS. THEY DID NOT GIVE OFF AN ODD ODOR, which is A HUGE PLUS because SOME OTHER BRANDS SMELL HEAVILY OF PLASTIC OR A CHEMICAL TYPE ODOR. THERE WAS NO ODOR AT ALL. THIS IS A HUGE PLUS. I AM COMFORTABLE SAYING THAT THESE WEIGHTS WILL LAST A LONG TIME BECAUSE OF HOW WELL THEY ARE MADE. YOU CANNOT BEAT THE PRICE EITHER!! THESE ARE ABSOLUTELY APPROPRIATE FOR PROFESSIONAL USE, AND, THEY ARE MEANT FOR PERSONAL USE AS WELL. SOMETIMES YOU JUST CANNOT GET TO THE GYM SO THIS IS WHERE THEY ARE KEY. HAND WEIGHTS HAVE THE ABILITY TO EXERCISE EACH MUSCLE OF THE TORSO AND ARMS. THERE ARE SOME EXCELLENT WEIGHT CHARTS OUT THERE TO SHOW YOU HOW TO DO THAT. IF YOU ARE GOING TO PHYSICAL THERAPY, THEN YOUR THERAPIST CAN INSTRUCT YOU AND KEEP YOU IN GOOD FORM. YOU COULD POSSIBLY HURT YOURSELF IF YOU WORKOUT INCORRECTLY. AS FAR AS THE LOWER EXTREMITIES, YOU CAN DO GROSS MOTOR EXERCISES BY HOLDING THESE WEIGHTS TO GET YOUR LEG MUSCLES BY DOING SQUATS, WALKING LUNGES, TOE RAISES, AND MORE. I DONT BELIEVE THAT MANY PEOPLE REALIZE JUST HOW MUCH YOU CAN DO FULL BODY EXERCISES WITH JUST TWO HAND WEIGHTS. IN CONCLUSION , THESE ARE EXCELLENT WEIGHTS THAT I WOULD RECOMMEND TO MY PATIENTS OR FRIENDS. THIS IS A HIGH QUALITY PRODUCT THAT WONT BREAK YOUR PIGGY BANK. I HIGHLY RECOMMEND VERY HIGHLY!. BUY WITHOUT RESERVATION!! A+++
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Reviewed in the United States on March 23, 2025
A
Verified Purchase
Aimee C.
Massapequa, US
★★★★★ 4
Perfect size and weight with compact size
Style: Rack with 3 Pairs (3, 5, and 8 Pound)
I purchased the Amazon Basics Neoprene Dumbbell Hand Weights specifically for Pilates, and they’ve been a great addition to my routine. The size and weight are perfect for controlled movements, helping with muscle toning without feeling too bulky or awkward. The neoprene coating gives them a comfortable, non-slip grip, which is especially important during longer sessions or when your hands get a little sweaty. They feel secure and easy to hold through a full workout. I also like the shape—they don’t roll around on the floor, which makes transitions between exercises smoother and less frustrating. They’re compact enough to store easily but still feel durable and well-made. Overall, these are a simple, affordable, and effective option for Pilates or light strength training. I’d definitely recommend them for anyone looking to add a little resistance to their workouts without overcomplicating things.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026
J
Verified Purchase
J. saroukhan
Cuba, US
★★★★★ 5
Well made , gym quality
Style: 10 Pound, Pair
Color is nice and bright . The weights grips are good they do not slip . Prices reflect quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
K
Verified Purchase
Kim Wood
Omaha, US
★★★★★ 5
Good purchase
Style: 3 Pound, Pair
These are just the right weight for me to start gaining muscle back in my arms, after a large weight loss. They are of good quality, they are covered in a nice rubber like coating that is soft to the touch. They are small enough that i can take them with me when I travel. My dog has got hold of them a couple times and played with them, and they held up just fine without any damage.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026

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