Dial In Your BMW M5 E60 Handling Balance with an Adjustable 21mm H&R Rear Sway Bar
The H&R 71426 Sport Sway Bar is a 21mm 3-hole adjustable rear sway bar designed for the 2005-2010 BMW M5 (E60). H&R Sport Sway Bars are engineered for drivers who want sharper handling and reduced body roll without requiring a suspension lowering kit. The HRS71426 provides three adjustment positions so you can tune the rear roll stiffness to match your driving style, track day requirements, or front sway bar setup. Installs in the OEM rear sway bar mounting location using the factory end links and hardware. Includes H&R’s exclusive Teflon-lined polyurethane bushings that require no grease or maintenance. Pairs directly with the H&R 70426 front sway bar for a complete E60 M5 sway bar upgrade.
Key Features
- 21mm 3-hole adjustable rear sport sway bar for the 2005-2010 BMW M5 (E60)
- Three adjustment positions allow tuning of rear roll stiffness to match driving preference or front bar setup
- H&R HRS71426 installs in the OEM rear sway bar location using factory end links
- Includes H&R exclusive Teflon-lined polyurethane mounting bushings, no grease or maintenance required
- Reduces body roll and improves cornering balance without altering ride height
- Pairs with H&R 70426 front sway bar for a complete front and rear upgrade
- Manufactured from high-strength steel alloy and engineered in Germany
- Limited lifetime warranty
Fitment
| Year Range | Make | Model | Trim |
|---|---|---|---|
| 2005-2010 | BMW | M5 | E60 |
Specifications
| Detail | Value |
|---|---|
| Part Number | 71426 |
| Brand | H&R Special Springs |
| Position | Rear |
| Diameter | 21mm |
| Adjustable | Yes, 3-Hole |
| Adjustment Positions | 3 |
| Bushing Type | Teflon-Lined Polyurethane (included) |
| Country of Origin | Germany |
| Width | 15.40 in |
| Height | 3.10 in |
| Depth | 54.00 in |
| Warranty | Limited Lifetime |
What Is Included
- 1x H&R 71426 21mm 3-hole adjustable rear sport sway bar
- Teflon-lined polyurethane mounting bushings
- Installation hardware
Frequently Asked Questions
What do the 3 adjustment holes on the H&R 71426 do?
The three end link mounting holes change the leverage point of the sway bar, increasing or decreasing rear roll stiffness. Using the inner hole gives the softest setting, the outer hole the firmest. The middle position is a balanced street and track setting for most BMW M5 E60 applications.
Does the HRS71426 require new rear end links on the BMW M5 E60?
The 71426 is designed to use the factory OEM rear end links. New end links are not required unless the originals are worn or damaged.
Can I install the H&R 71426 without also upgrading the front sway bar?
Yes. The HRS71426 rear bar can be installed independently. However, for the best handling balance, it pairs with the H&R 70426 30mm non-adjustable front sway bar for a complete front and rear E60 M5 upgrade (also available separately as a kit, H&R part number 72426).
Will the H&R 71426 cause oversteer on the BMW M5 E60?
Increasing rear sway bar stiffness alone can reduce understeer and increase turn-in response, but in excess can promote oversteer. The three adjustment positions allow you to find the right balance. Start at the middle hole and adjust based on how the car handles in practice.
Do the Teflon-lined bushings on the 71426 squeak?
No. H&R’s Teflon-lined polyurethane bushings are permanently lubricated and do not require grease or re-lubrication, which eliminates the squeaking common with standard polyurethane bushings on sway bars.
Does the H&R 71426 rear sway bar change ride height on the E60 M5?
No. The 71426 is a direct replacement for the factory rear sway bar. It does not alter ride height in any way.
Is the H&R 71426 legal for street use?
Yes. Sway bar replacements do not require emissions or safety certification in the USA and are legal for street use.
What tools are needed to install the H&R 71426 on a BMW M5 E60?
Installation typically requires a floor jack, jack stands, metric sockets, a torque wrench, and a Torx set. A bushing press or rubber mallet helps seat the polyurethane mounting bushings into the mounting brackets.
Installation Instructions
- Safely raise the vehicle and support on jack stands at the rear jacking points.
- Remove the rear wheels for better access to the rear suspension and sway bar mounting locations.
- Disconnect the factory rear sway bar end links from both sides of the sway bar.
- Remove the rear sway bar mounting bracket hardware and lower the factory rear sway bar.
- Install the Teflon-lined polyurethane bushings onto the H&R 71426 sway bar at the factory mounting positions.
- Position the H&R 71426 into the rear mounting location and install the brackets.
- Select the desired end link mounting hole on each end of the sway bar. Connect the factory end links.
- Torque all fasteners to factory specification.
- Reinstall the rear wheels and lower the vehicle.
- Test drive and verify no noise from the rear sway bar area before returning to normal use.
WARNING: This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.
