Strongflex
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Anti-roll bar bushes: order the right Strongflex size
When ordering Strongflex anti-roll bar bushes, finding your car in the catalogue is only the start. You also need to confirm the mounting position, the bar diameter at that location and any notes for the exact vehicle variant. Two options with the same diameter may have different profiles, while the pack quantity is a separate check. Matching these details before you order gives you a clearer basis for selecting the correct part.
Use this guide when a product page offers several sizes or versions and you need to narrow them down. We'll work through the checks in order, use two manufacturer examples and explain which details to have ready if you need help.
Record the part number together with the complete size-option label. On the 141509A page, for example, “17mm” and “17mm GTI” are two separate choices.
What are anti-roll bar bushes, and which size do you need?
Anti-roll bar bushes support the bar at its chassis or subframe mounts. These mounting bushes are the focus of this guide. A bush used in an anti-roll bar link may be a separate part, so check the exact position in the product information and any available fitting diagram.
Where a selector asks for anti-roll bar diameter, it needs the relevant bar size. The outside width of the old bush, the bracket dimensions or a photograph of a similar part cannot substitute for that information. You also need to match the bush profile and its application.
How should you choose Strongflex anti-roll bar bushes?
Work through these five checks in order, comparing the vehicle with the product information as you go.
1. Identify the exact vehicle and mounting position
Record the model, production year and known suspension variant. Establish whether you are working on the front or rear axle, then check the mounting position in the product information and any available diagram. A match to a broad model family is a starting point rather than complete fitment confirmation.
On a modified car, find out whether the original anti-roll bar is still fitted. If it has been replaced, compare the bar currently on the car with the catalogue. The original vehicle specification is then only a starting point.
2. Confirm the diameter at the bush location
Have the bar checked where the bush sits. Measuring a convenient section elsewhere may be misleading if its profile differs. The opening in a worn bush is also an uncertain substitute for identifying the bar it supports.
Record the measurement in millimetres and compare it with the manufacturer's available options. If the result falls between sizes, or the surface condition makes it uncertain, have it checked before choosing an option. Do not round to the nearest listed size by guesswork.
3. Read the profile and variant notes
An extra word in the size selector can describe a physical difference. Read labels such as GTI alongside the full application note. Matching the stated diameter does not establish that the bore profile, left and right arrangements or mounting positions are identical.
Use photographs to orient yourself, then make the selection from the product data and any available diagram. If the picture and the application note appear inconsistent, ask about the exact part number before ordering. A generic photograph should not overrule a specific fitment restriction.
4. How many should you order from LLRacing?
On the LLRacing product page, check the product description for what the selected item contains and whether it is sold individually or as a kit. Then choose the quantity you want to add to your basket.
The contents of a kit and the number of bushes you intend to replace are separate checks. If the quantity supplied is unclear, contact us with the part number shown on the product page. We can help confirm what you need before you order.
5. Colour, hardness and intended use
Once the dimensions and profile match, choose the hardness. Strongflex explains its basic colour markings as follows:
Colour and hardness
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Red
approx. 80 ShA
According to Strongflex's basic colour guide.
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Yellow
approx. 90 ShA
According to Strongflex's basic colour guide.
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Black / grey
Check the specific product
Hardness can correspond to the red or yellow version.
Black or grey versions can give a more discreet appearance, closer to an original rubber bush. Not every product is available in every colour or hardness. Check the selected version's details in the LLRacing product description. If the hardness is unclear, contact us with the part number.
Consider the specific product and how you use your car when weighing up comfort and handling. The dimensions and profile must still match, whichever hardness you choose.
Two catalogue examples worth reading closely
These two listings show why the application note deserves a close read. Use them to understand the catalogue, then check the complete current listing for your own car.
031183A: look beyond the BMW E24 or E28 label
On the 031183A page, the note restricts the E24 1982–1989 entry to the M635, and the E28 1981–1988 entry to the M535. Strongflex specifies a 25 mm bar diameter for both.
The E24 or E28 model name alone is therefore not enough. Confirm the exact variant and the bar fitted to the car before choosing the size option.
141509A: the GTI option describes more than diameter
The 141509A listing specifies “17mm GTI” or “21mm GTI” options for certain named variants, including the Peugeot 205 GTI. The note explains that the original bar has a different shape at the left-hand mounting point. The 17 mm or 21 mm figure specifies the bar diameter, while the GTI suffix identifies a different mounting profile. Check the complete option label when choosing the bush.
A general product photograph may not show the difference between the left and right profiles.
Four situations to resolve before choosing a part
If any of these situations applies, resolve the missing detail before choosing the next part.
- Several sizes, no measurement. The model listing may cover more than one bar option. Have the relevant section measured before selecting a size.
- Same diameter, different variant label. A special profile may be involved. Compare the application note and any available mounting diagram rather than treating the options as interchangeable.
- Unclear pack quantity. A photograph shows several components, but it is unclear what is included. Check the contents in the LLRacing product description, or ask us before ordering.
- A knock remains after replacement. Noise alone does not prove that the bush size is wrong. Have the mounting, fit and related suspension parts inspected before ordering another replacement.
Your pre-order checklist
Have the following details ready when comparing Strongflex anti-roll bar bushes or asking for help with an uncertain listing.
If safe access for measurement or identification is beyond your equipment or experience, use a suitably equipped workshop. Installation must follow the instructions for the specific product and vehicle.
Common sizing questions
These questions can also come up when choosing a size.
Are the model and year enough?
Not always. A listing may include restrictions for a particular variant, mounting position or bar diameter. On a modified car, identify the bar currently fitted as well as the original vehicle specification.
Why not measure the opening in the old bush?
If the selector requests bar diameter, that is the information you need. The old bush's condition and profile can make its opening misleading. Match the size option to the identified bar and application.
What if the measured size is not listed?
Have the measurement location and part identification checked, then ask for help with the exact part number and recorded dimension. Do not automatically select the closest size or plan your own modification without an approved procedure.
Bring the checks together before you order
For the right anti-roll bar bushes, the vehicle variant, mounting position, bar diameter and profile must all match. Once those details are clear, confirm pack contents and hardness. You can then put the fully identified option in your basket.
Browse our Strongflex suspension bushes. If you're unsure about the size or pack contents, email your vehicle details, selected part number and measured bar diameter to info@llracing.eu.
