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Torsion Bars

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DISPLAYING 1 to 9 (of 9 products)
1S166911F
Product Information
Product Information
Chrome Moly Light Weight Hollow Front Torsion Bar (SET OF 2)
- 21mm
- 22mm

Tighten up your suspension with these high precision, light weight, hollow torsion bars.

Fabricated from aircraft quality 4130 chrome moly steel, and heat treated for high strength and reliability.

Zinc plated with plugged ends for superior corrosion resistance.

Precision machined splined ends for a perfect fit.

Center less ground and gun drilled for a consistent spring rate.

Lighter weight compared to solid bars with an equivalent stiffness. Up to 3 lbs lighter per bar!

These are the highest quality bars on the market.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

1S166911F
1S166911F21
1S166911F22

The product you are viewing cross references to these numbers
1S166911TR
Product Information
Product Information

Lightweight Hollow Rear Torsion Bar – Porsche 911 G50 

Transform the handling of your Porsche 911 G50 with these OE Match Lightweight Hollow Rear Torsion Bars. Engineered for enthusiasts who demand sharper handling, improved chassis balance and reduced weight, these premium torsion bars are manufactured from aircraft-grade 4130 chrome molybdenum steel and precision heat treated to deliver exceptional strength, durability and consistent spring rates.

Fits:

  • Porsche 911 1987-1989 3.2L G50
  • Porsche 911 1978-1989 3.3L Turbo (930)

Designed as a direct replacement for the factory rear torsion bars, these lightweight hollow bars provide the same or greater stiffness as comparable solid bars while reducing unsprung weight by up to 3lbs (1.36 kg) per bar. The result is a more responsive suspension, improved traction and greater driver confidence whether you're driving on the road, fast road or circuit.

Available in different diameters, these torsion bars allow you to tailor your Porsche's suspension to suit your driving style and performance goals.

Available Sizes

Choose the torsion bar diameter best suited to your suspension setup:

  • 27mm
  • 28mm
  • 29mm
  • 30mm
  • 31mm
  • 32mm

Larger diameters increase rear spring rates, improving body control and reducing chassis roll during aggressive driving.

What Do Rear Torsion Bars Do?

Rear torsion bars are the primary springing component of the classic Porsche 911 rear suspension.

They are responsible for:

  • Supporting the weight of the rear of the vehicle.
  • Controlling suspension movement.
  • Maintaining correct ride height.
  • Reducing body roll through corners.
  • Improving traction and chassis stability.
  • Working alongside the dampers to control suspension movement.
  • Delivering the balance and handling characteristics the Porsche 911 is renowned for.

Selecting the correct torsion bar size allows the suspension to be tuned for road, fast road or motorsport applications.

Why Upgrade to Lightweight Hollow Torsion Bars?

These OE Match hollow torsion bars offer significant advantages over standard solid bars.

Benefits include:

  • Up to 3 lbs (1.36 kg) lighter per bar than equivalent solid torsion bars.
  • Reduced unsprung and rotational mass.
  • Faster suspension response over uneven road surfaces.
  • Improved steering feel and chassis balance.
  • Increased cornering stability.
  • More consistent suspension performance under high loads.
  • Superior fatigue resistance for long service life.        

The reduction in suspension weight allows the dampers to control wheel movement more effectively, resulting in greater grip and improved ride quality.

Premium Engineering & Construction

Manufactured using premium materials and precision machining techniques, these are among the highest-quality torsion bars available.

Features include:

  • Manufactured from aircraft-quality 4130 chrome molybdenum steel.
  • Heat treated for maximum strength and long-term reliability.
  • Hollow gun-drilled construction for reduced weight without sacrificing stiffness.
  • Centreless ground to ensure consistent diameter and spring rate.
  • Precision-machined splined ends for an accurate OE-style fit.
  • Zinc-plated finish with plugged ends for outstanding corrosion resistance.
  • Precision engineered for consistent performance and durability.        

Every component is manufactured to exacting tolerances to ensure exceptional quality and repeatable suspension performance.

When Should Rear Torsion Bars Be Upgraded?

Upgrading is recommended when:

  • Improving the handling of your Porsche 911.
  • Installing performance dampers.
  • Lowering the vehicle.
  • Rebuilding the rear suspension.
  • Building a fast road or track-focused car.
  • Replacing tired or corroded factory torsion bars.
  • Increasing grip through wider tyres or suspension upgrades.
  • Fine-tuning chassis balance for motorsport applications.

Replacing torsion bars during a suspension rebuild ensures all major wear components are renewed at the same time.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

1S166911TR
1S166911R

The product you are viewing cross references to these numbers
1S166911R
Product Information
Product Information
Light weight hollow rear torsion bar.  (SET OF 2)

Fits:
Porsche 911 65-86 Rear

Available in 7 sizes:

- 25mm
- 26mm

- 27mm

- 28mm
- 29mm
- 31mm
- 33mm

Tighten up your suspension with these high precision, light weight, hollow torsion bars.

Fabricated from aircraft quality 4130 chrome moly steel, and heat treated for high strength and reliability.

Zinc plated with plugged ends for superior corrosion resistance.

Precision machined splined ends for a perfect fit.

Centre less ground and gun drilled for a consistent spring rate.

Lighter weight compared to solid bars with an equivalent stiffness. Up to 3 lbs lighter per bar!

These are the highest quality bars on the market.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

1S166911R
1S166911F21
91133310103
91133310203

The product you are viewing cross references to these numbers
1-PP911R26
Product Information
Product Information
Plated & Plugged Hollow Torsion Bars.
Plated/Plugged 26mm, PAIR

elephantracing

Fits:
Porsche 911/912/930 1965-86
Porsche 356 A / 356 B / 356 Pre-A, C And CS Read Notes* (1948-65)

Our Plated & Plugged Hollow torsion bars are the best available. The ends are plugged to prevent moisture entry that rots ordinary hollow bars from the inside out. The entire bar is zinc plated for superior protection.

Excellent quality control means proper spline fit and spring-rate consistency bar-to-bar. Inferior quality competing bars fail on all counts.

• Hollow, light weight
• Plated & Plugged
• Consistent spring rate
• Great spline fit

Upgrade Hollow bars provide a nice weight savings over equivalent spring rate solid bars, especially true of the heavier rear bars. This is a great way to trim extra pounds from the back of your car.

* The size given is a solid-bar-equivalent. Actual hollow bar measures about. 5mm larger.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

1-PP911R26
1-PP911R26
90133310105
90133310115
90111110106
90133310205
90133310210
90133310206
91133310109
91133310116
91133310209
91133310216
91133310103
91133310113
91133310203
91133310213
91133310111
91133310114
91133310211
91133310214
91133310112
91133310115
91133310212
91133310215
311511115D
311511116D
94433311500
94433311600
94433310300
94433310400
95133310330
95133310430

The product you are viewing cross references to these numbers
1-PP911RT29
Product Information
Product Information
Plated & Plugged Hollow Torsion Bars - REAR
Plated/Plugged 29mm, PAIR

elephantracing

Fits:
For G50 Transmission
Porsche 911/912/930 1987-89


Our Plated & Plugged Hollow torsion bars are the best available. The ends are plugged to prevent moisture entry that rots ordinary hollow bars from the inside out. The entire bar is zinc plated for superior protection.

Excellent quality control means proper spline fit and spring-rate consistency bar-to-bar. Inferior quality competing bars fail on all counts.

• Hollow, light weight
• Plated & Plugged
• Consistent spring rate
• Great spline fit

Upgrade Hollow bars provide a nice weight savings over equivalent spring rate solid bars, especially true of the heavier rear bars. This is a great way to trim extra pounds from the back of your car.

* The size given is a solid-bar-equivalent. Actual hollow bar measures about. 5mm larger.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

1-PP911RT29
1-PP911RT29
PP911RT29
91133311500
91133311502
91133311600
91133311602
93033311501
93033311502
93033311601
93033311602

The product you are viewing cross references to these numbers
1-PP911R27
Product Information
Product Information
Plated & Plugged Hollow Torsion Bars. - REAR
Plated/Plugged 27mm, PAIR

elephantracing

Fits:
Porsche 911/912/930 1965-86
Porsche 356 A / 356 B / 356 Pre-A, C And CS Read Notes* (1948-65)

Our Plated & Plugged Hollow torsion bars are the best available. The ends are plugged to prevent moisture entry that rots ordinary hollow bars from the inside out. The entire bar is zinc plated for superior protection.

Excellent quality control means proper spline fit and spring-rate consistency bar-to-bar. Inferior quality competing bars fail on all counts.

• Hollow, light weight
• Plated & Plugged
• Consistent spring rate
• Great spline fit

Upgrade Hollow bars provide a nice weight savings over equivalent spring rate solid bars, especially true of the heavier rear bars. This is a great way to trim extra pounds from the back of your car.

* The size given is a solid-bar-equivalent. Actual hollow bar measures about. 5mm larger.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

1-PP911R27
PP911R27
1-PP911R27
90133310105
90133310115
90111110106
90133310205
90133310210
90133310206
91133310109
91133310116
91133310209
91133310216
91133310103
91133310113
91133310203
91133310213
91133310111
91133310114
91133310211
91133310214
91133310112
91133310115
91133310212
91133310215
311511115D
311511116D
94433311500
94433311600
94433310300
94433310400
95133310330
95133310430

The product you are viewing cross references to these numbers
209202
Product Information
Product Information
QuickChange™ Torsion Bars, FRONT
Sold per kit, 1 kit req'd per car.

Fits:
Porsche 911/912/930 1965-89
Porsche 914 1970-76

QuickChange Torsion Bars are Plated & Plugged and include a female threaded end that you can engage with a bolt to use as a handle for easier extraction / insertion.

Use the rears bars in combination with our QuickChange™ Spring Plate products for fast torsion bar swapping and re-indexing. QuickChange™ Torsion Bars can be extracted through the QuickChange™ Spring Plate without removing any bolts. Alignment settings are maintained. You don't even need to remove the wheel from the car. Changing torsion bars is a 5 minute per side operation!

A QuickChange™ Insert is available separately for converting your existing hollow torsion bars.

QuickChange™ Torsion Bars make it easy to dislodge a stuck bar, and thereby offer benefits even when used on the front and with factory spring plates (factory spring do not allow the bars to be extracted without removing the plates).

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

209202
2061003
90134310112
90134310114

The product you are viewing cross references to these numbers
21021
Product Information
Product Information
QuickChange™ Torsion Bars, REAR
Sold per kit, 1 kit req'd per car.

elephantracing

Fits:
for G50 Transmission
Porsche 911 / 930 1987-89

QuickChange Torsion Bars are Plated & Plugged and include a female threaded end that you can engage with a bolt to use as a handle for easier extraction / insertion.

Use the rears bars in combination with our QuickChange™ Spring Plate products for fast torsion bar swapping and re-indexing. QuickChange™ Torsion Bars can be extracted through the QuickChange™ Spring Plate without removing any bolts. Alignment settings are maintained. You don't even need to remove the wheel from the car. Changing torsion bars is a 5 minute per side operation!

A QuickChange™ Insert is available separately for converting your existing hollow torsion bars.

QuickChange™ Torsion Bars make it easy to dislodge a stuck bar, and thereby offer benefits even when used on the front and with factory spring plates (factory spring do not allow the bars to be extracted without removing the plates).

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

21021
2102126
2102127
2102128
2102129
2102130
2102131
2102132
2102133
2102134
2102136
2102138
91133311500
91133311502
91133311600
91133311602
93033311501
93033311502
93033311601
93033311602

The product you are viewing cross references to these numbers
21020
Product Information
Product Information
QuickChange™ Torsion Bars, REAR
Sold per kit, 1 kit req'd per car.

elephantracing

Fits:
Porsche 911/912/930/914 '65-'86
Porsche 356 A/B '48-'65 (Pre-A, C and CS Read Notes),
Porsche 944/968/924 '76-'95 w/ QuickChange Spring Plates

PLEASE NOTE: sizes 34mm and 36mm are not applicable for 944, 968 and 924 models)

QuickChange Torsion Bars are Plated & Plugged and include a female threaded end that you can engage with a bolt to use as a handle for easier extraction / insertion.

Use the rears bars in combination with our QuickChange™ Spring Plate products for fast torsion bar swapping and re-indexing. QuickChange™ Torsion Bars can be extracted through the QuickChange™ Spring Plate without removing any bolts. Alignment settings are maintained. You don't even need to remove the wheel from the car. Changing torsion bars is a 5 minute per side operation!

A QuickChange™ Insert is available separately for converting your existing hollow torsion bars.

QuickChange™ Torsion Bars make it easy to dislodge a stuck bar, and thereby offer benefits even when used on the front and with factory spring plates (factory spring do not allow the bars to be extracted without removing the plates).

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

21020
2102026
2102027
2102028
2102029
2102030
2102031
2102032
2102033
2102034
2102036
2102038
90133310105
90133310115
90111110106
90133310205
90133310210
90133310206
91133310109
91133310116
91133310209
91133310216
91133310103
91133310113
91133310203
91133310213
91133310111
91133310114
91133310211
91133310214
91133310112
91133310115
91133310212
91133310215
311511115D
311511116D
94433311500
94433311600
94433310300
94433310400
95133310330
95133310430

The product you are viewing cross references to these numbers
DISPLAYING 1 to 9 (of 9 products)
Also found on these pages
About Torsion Bars
Porsche Torsion Bars

Upgrade your Porsche suspension with performance torsion bars that are tailored to your model and how you use the car.

Upgrade Your Porsche Suspension with Performance Upgrade Torsion Bars: Technical Specifications and BenefitsTechnical specifications of Performance Upgrade Torsion Bars:Performance upgrade torsion bars are essential components of the Porsche suspension system.They are part of the torsion bar suspension system and are responsible for supporting the weight of the vehicle and providing stability.Performance torsion bars are typically made from high-quality materials such as heat-treated alloy steel, offering increased strength and durability.Performance upgrade torsion bars are available as aftermarket upgrades or standard replacements for Porsche models.Benefits of upgrading or replacing Performance Upgrade Torsion Bars for your Porsche:Enhanced suspension performance: Performance upgrade torsion bars offer increased stiffness and improved handling characteristics, allowing for more precise control and better road grip.Adjustability: Some performance torsion bars feature multiple adjustment positions, allowing you to fine-tune the suspension setup according to your driving preferences or specific track conditions.Improved weight distribution: Upgrading to performance torsion bars can help optimize weight distribution across the front and rear axles, resulting in improved balance and stability during cornering.Increased durability: Performance torsion bars are designed to withstand higher loads and provide increased durability compared to standard torsion bars, ensuring long-lasting performance even under demanding driving conditions.Potential for improved ride height: Depending on the specific torsion bar upgrade, you may have the option to adjust the ride height of your Porsche, allowing for a more aggressive stance and improved aerodynamics.At Design911, we specialize in providing the correct parts and professional advice for your Porsche. We offer a wide range of performance upgrade torsion bars specifically designed for Porsche models, including both aftermarket upgrades and OEM replacements. Our knowledgeable team can assist you in selecting the appropriate torsion bars based on your Porsche model, year, and specific suspension requirements. We understand the importance of achieving optimal suspension performance and handling characteristics, and we can guide you in choosing the best torsion bars that suit your needs. With our expertise and commitment to customer satisfaction, we can help you enhance your Porsche's suspension precision, stability, and overall driving experience. Contact us today to benefit from our comprehensive support and access high-quality parts tailored to your requirements.

Why do Porsche Torsion Bars matter?

Torsion bars form the main spring element on many classic Porsche models, controlling ride height and contributing to overall balance and stability. Over time they can corrode, lose effectiveness or no longer suit how you want the car to feel. Updating them helps keep suspension behaviour consistent with your goals and restores a solid baseline for further setup.

  • Keep your Porsche looking smart rather than tired or neglected
  • Help protect nearby components from dirt, moisture and corrosion where relevant
  • Reduce minor niggles such as mismatched, scuffed or visibly corroded hardware
  • Support long-term enjoyment, pride of ownership and potential resale value
Common options & kits

Individual replacement parts Specific items to address a particular area or issue without changing everything at once.

  • Ideal for targeted repairs
  • Lets you replace only what is needed
  • Helps keep initial costs under control

Matched sets or pairs Components supplied together so both sides or related items are renewed at the same time.

  • Consistent feel and performance
  • Helps avoid uneven wear or behaviour
  • A sensible choice for routine maintenance

Complete kits Grouped parts designed to refresh a whole system or area in one go, useful for upgrades and restorations.

  • Everything specified in a single package
  • Saves time compared with sourcing parts individually
  • Ideal when upgrading or restoring your Porsche
Brands available in this category

For this category we stock a wide choice of trusted brands for Porsche models. You can also browse and filter by brand on this page to focus on your preferred manufacturers.

When should you review or replace your Porsche torsion bars?

Checking torsion bars regularly helps you spot wear, damage or age-related deterioration before it affects comfort, refinement or leads to more expensive repairs later on.

  • Sagging ride height, uneven corner heights, corrosion issues, seized splines, and handling imbalance. Clunks may be related to spring plate bushes or trailing arm bushes rather than the torsion bar itself.
  • Torsion bars are changed to restore correct ride height, replace worn/corroded components, or alter spring rate for different handling goals. You may choose a rate that suits road comfort, fast road use, or track-style response, but correct damper pairing and setup are essential.
  • You notice looseness, vibration or an untidy appearance around the suspension area
  • You have had related suspension work carried out and want everything to feel consistent

If any of these apply, it is a good time to review your torsion bars and replace anything that is past its best so your Porsche stays dependable and enjoyable to drive.

Explore Porsche torsion bars with Design911

Browse torsion bars for Porsche at Design911 — from individual parts to complete kits — and find options to suit everyday maintenance, upgrades and full projects.

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