Nitron NTR R3 3-Way Coilovers - BMW M135i/M140i F20/F21
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You’ll earn 5499 Laps
For 1 item, including VAT but excluding delivery.
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Minimum spends include VAT and exclude delivery and ineligible products. Use one reward or discount code per order; it cannot be combined with any other product, order or shipping discount. Rewards apply only to eligible products and variants shown in your rewards profile. Returns and refunds remove the Laps earned on refunded items; pending Laps are cancelled. Spending Laps does not reduce your qualifying lifetime spend. Laps and standard reward codes do not expire.
Description
Nitron NTR R3 suspension for BMW M135i/M140i F20/F21 applications adds independent rebound, low-speed compression and high-speed compression control for a developed hatchback chassis. It is not a blanket fitment across every BMW M Performance model.
F20/F21 application and equipment
Confirm the exact car, drivetrain and original electronic-damper equipment. The manufacturer lists M135i and M140i in this application family, but that does not establish fitment for later F40, F70 or G42 cars. Any xDrive or suspension-conversion requirements need separate confirmation.
Make three-way adjustment useful
Use the independent controls around a measured baseline for springs, tyres, ride height and alignment. Reservoir location and hose routing must be checked with the installed hardware through the full working range.
Confirm rear spring/damper arrangement, top mounts and any electronic-damping integration or cancellation components before ordering. The one purchase variant does not imply that every possible build option is included. Nitron dampers are serviceable.
Compare R1 and plan fitting
The matching F20/F21 NTR R1 links compression and rebound through one control and may better suit a simpler tuning process.
View the M135i and M140i suspension collections. Additional arms, mounts and drop links must be checked against the exact Nitron installation rather than combined solely by vehicle tags. Arrange professional fitting, alignment and a current build estimate before booking workshop time.
More information
Get Booked in for fitting here
Warranty, Shipping and Returns
Products are supplied with the applicable manufacturer warranty. We offer UK and worldwide shipping. Please refer to the live availability information and our shipping and returns policies before ordering. Contact us if you need to confirm compatibility, intended use or any product-specific conditions.
Finance Options
Available payment options and current terms are shown at checkout. Instalment options depend on the provider and eligibility. Please review the terms displayed before confirming your payment.
Why buy from us?
Why buy from us?
Specifications
- Brand
- Nitron Racing
- Product type
- Suspension Coilovers
- Vehicle make
- BMW
- Vehicle model
- M135i and M140i
- Vehicle variant
- F20 and F21
You’ll earn 5499 Laps
For 1 item, including VAT but excluding delivery.
How it works
Sign in before ordering. Earn 1 Lap for every whole £1 of eligible product spend, including VAT.
Delivery, gift cards, sale-priced or discounted items and trade purchases do not earn Laps.
Purchase Laps become available 30 days after payment. Returns and refunds remove Laps earned on refunded items; pending Laps are cancelled.
This estimate follows your selected option and quantity. Checkout discounts can change eligibility. Bundle prices count once. Appstle records the final award after payment.
Sign in, open Spend Laps and choose an available reward. Redeem your Laps, copy your unique discount code and enter it at checkout using the same customer account.
Your tier makes your Laps go further: 1,000 Laps are worth £10 at Rookie, £12.50 at Contender, £20 at Pro or £25 at Champion. Choose £5 off £100, £10 off £200, £25 off £500 or £50 off £1,000 of eligible products.
Minimum spends include VAT and exclude delivery and ineligible products. Use one reward or discount code per order; it cannot be combined with any other product, order or shipping discount. Rewards apply only to eligible products and variants shown in your rewards profile. Returns and refunds remove the Laps earned on refunded items; pending Laps are cancelled. Spending Laps does not reduce your qualifying lifetime spend. Laps and standard reward codes do not expire.
Nitron FAQ's
Here's some frequently asked questions about Nitron Suspension
Which Nitron suspension kit is best for road use?
For most road and fast road cars, we’d usually look at the Nitron RoadSport or NTR R1 kits. The RoadSport kit is designed to balance performance, comfort and reliability, while still keeping ride quality sensible for daily driving. The NTR R1 is a step up if you want more adjustment and a more focused road/track setup.
What is the difference between Nitron RoadSport, R1 and R3 coilovers?
The Nitron RoadSport kit is the most road-focused option, using OE top mounts and following the OE rear suspension type, making it a good choice for comfort and everyday use. The NTR R1 gives you easy-to-use 2-way combined damping control and is built for strong road and track performance. The NTR R3 is the more serious option, with independent 3-way damping adjustment, giving separate control of rebound, high-speed compression and low-speed compression for drivers who want to fine-tune the car properly.
Are Nitron coilovers suitable for track use?
Yes, Nitron suspension is very well suited to track use, but the right kit depends on how serious the car is. The NTR R1 is a strong option for fast road and track day use, while the NTR R3 is better suited to more focused builds where you want a larger range of adjustment and more detailed control over the car’s behaviour.
Are Nitron coilovers rebuildable or serviceable?
Yes, one of the big benefits of Nitron suspension is that the shocks are designed to be fully serviceable. Nitron state that their modular shock design allows products to be serviced, with critical components, fluids, gas, seals and bushes replaced to return the product to an “as new” technical condition.
What does Nitron R3 adjustment actually do?
Nitron R3 coilovers give independent 3-way damping adjustment. That means you can adjust rebound separately from high-speed and low-speed compression. In simple terms, it gives much more control over how the car reacts under braking, cornering, kerb strikes, bumps and weight transfer. For most normal road cars it may be more than needed, but for track-focused cars it’s a proper step up.
Do Nitron coilovers need setting up after fitting?
Yes, definitely. Nitron suspension should be installed properly, and after fitting we’d always recommend setting ride height sensibly, checking preload where applicable and carrying out a full alignment. For more serious road and track cars, corner weighting and proper geometry setup are well worth doing so you actually get the benefit from the suspension rather than just fitting it and leaving it.
What is the difference between a divorced rear and a true rear coilover setup?
On some vehicles, the factory rear suspension uses a divorced layout, where the spring and damper are mounted separately. A true rear coilover setup moves the spring onto the damper body, creating a coilover-style rear arrangement. The best option depends on the vehicle, how it’s used and what the suspension kit is designed for. For most road and fast road builds, we’d normally stick with the layout recommended by Nitron for that specific application.
Should I choose a divorced rear or true rear coilover setup?
If the car is mainly used on the road, a divorced rear setup is often the more suitable choice, especially where it follows the original suspension design. A true rear coilover setup can offer more adjustment and can be useful on certain track-focused builds, but it is not always the best option for every car. We’d always recommend choosing the correct Nitron kit for the vehicle rather than assuming true rear is automatically better.
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