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NEW SURE RDS-05: Rear Sway Bar for MS3
SURE RDS-05: Rear Sway Bar for MS3

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Our Price: $225.00

Availability:: Ships Immediately
Product Code: SURE0605


Whether you’re hitting an on-ramp to the highway, auto-crossing, or carving a canyon road, your Mazdaspeed 3 is a handling machine. From the factory, the MS3 suspension performs extraordinarily. Lets compliment its performance with a strong defense against body roll. Introducing the RDS-05 Mazdaspeed3 Rear Anti-Roll Bar.


Mazdaspeed3 (07-09)
Mazdaspeed3 (10-13)

The RDS-05 is designed to be a factory replacement rear sway bar with major improvements in handling. The bar offers three stiffening adjustments for your Mazdaspeed 3 driving requirements. It is a great compliment to your factory sway bar. Your new Roll Defense System is active and ready for duty.


The RDS-05 bar is made of incredibly strong 1026 steel tubing. Steel bushing brackets and black polyurethane bushings mount the bar to the subframe. The adjustable aluminum collars are machined from T-6061 aluminum. To reduce friction, the RDS-05 includes a long-lasting synthetic lubricant for use on the polyurethane bushings.


The steel tubing and steel brackets of the RDS-05 are both powder-coated satin black. The aluminum collars are anodized black to match, keeping the system safe from the elements and protected from corrosion. It is compatible with the stock endlinks, and comes with all necessary hardware to ensure perfect fitment without modification to your vehicle.

Tech Comparison

Stronger, stiffer, and lighter. The solid MS3 factory bar has a of diameter of .985″ (25mm). The RDS-05 diameter is 1.25″ (31.75mm) with a wall thickness of 3/16″ (4.76mm). The RDS-05 reduces body roll better than the stock sway bar, yet weighs almost a pound less.

Stiffening Adjustment Values (including 20% loss for bushings and endlink deflection)

922 lbs/in – Outside Position

1140 lbs/in – Middle Position

1439 lbs/in – Inside Position

The Mazda3/Mazdaspeed3 factory bar ranges from 230 lbs/in to 470 lbs/in.

The RDS-05 Anti-Roll Bar is covered by our lifetime warranty.

Synthetic bushing grease included.

Average Customer Review: Average Customer Review: 5 of 5 5 of 5 Total Reviews: 2 Write a review.

  0 of 0 people found the following review helpful:
5 of 5 Incredible Improvement! September 27, 2014
Reviewer: Martin Dorsett from Aiken, SC United States  
I installed on the stiffest setting and the change is incredible. I was expecting an improvement in cornering but the added rear stiffness under heavy acceleration was an unexpected bonus. The only problem I had with the installation was getting the bushing mounts to line up with my factory bolt holes so the install took me quite a bit longer than anticipated. The problem that may have stemmed entirely from the fact that I was working with a jack and stands and not a lift. If working at ground level I recommend an impact gun (electric or air) for removing the rearmost mounting bolts where you select the stiffness. This is simply due to the inevitable corrosion from weather.

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  1 of 1 people found the following review helpful:
5 of 5 Night and Day July 9, 2013
Reviewer: Adam from Chicago, IL  
Ever ride in a corvette and take sharp curves wishing your everyday car could stay that flat and hug the turns?....me too, but now I got that feeling. There is a huge difference between this one and the stock sway bar. On my 2010 Speed3 I set it to the middle setting for stiffness and I'm so happy with it, I don't think I'll change it. Super quick and easy install, should only take about 30min which includes jacking up the car. Amazing bang for the buck!

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