What does 3-way adjustment mean on Nitron's Mk 2 Focus RS NTR-R3 Coilover Kit?

It means rebound, low-speed compression and high-speed compression each have their own adjuster. Low-speed compression controls body movement under braking, turn-in and throttle. High-speed compression controls how the damper reacts to sharp hits like curbs and bumps. Because the circuits are independent, you can firm up body control without making the car harsh over curbing.

Why does the Mk 2 Focus RS NTR-R3 kit use hose reservoirs up front and piggyback reservoirs in the rear?

It matches the reservoir style to the space available at each end. Hose-mounted front reservoirs fit around the RS engine bay and put the compression adjusters within easy reach. Nitron’s Bi-Axis fittings line the hoses up cleanly. At the rear, piggyback reservoirs sit directly on the dampers, which keeps the install tidy.

Does the Mk 2 Focus RS NTR-R3 kit require changes to the rear suspension?

No. Nitron's Mk 2 Focus RS NTR-R3 kits use an OEM-type rear suspension layout that bolts to the factory rear mounting points. The rear subframe and arms stay as Ford built them. That keeps the rear geometry close to stock while the NTR-R3 dampers give you far more control over how the rear behaves.

Are top plates included with the Mk 2 Focus RS NTR-R3 kit?

Yes. Nitron top plates come with every kit, so there is nothing extra to source for the front. New top plates also mean you start without the play and noise that worn factory mounts often develop on higher-mileage Mk 2 RS cars, and that helps you feel the adjustments more clearly.

Should I choose the Nitron NTR-R3 over the Nitron NTR-R1 for my Focus RS?

The Nitron NTR-R3 makes sense if you track the car regularly and want to tune individual damping circuits. The Nitron NTR-R1 uses a single combined adjuster and no reservoirs, which suits fast road use and occasional track days. The NTR-R3 adds separate high- and low-speed compression, plus reservoirs that keep damping more consistent over long sessions.

Can the Nitron Mk 2 Focus RS NTR-R3 be revalved after it is delivered?

Yes. Every NTR-R3 damper can be fully serviced and rebuilt, which includes revalving and spring changes if the car’s spec changes. Moving to slicks, adding power or switching to a different type of event are all good reasons to revisit the setup.

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Description

Nitron NTR-R3 Coilover Kit for C307 Ford Focus RS

Rebound, low-speed compression and high-speed compression each get their own adjuster on the Nitron Mk 2 Focus RS NTR-R3 Coilover Kit. For a Mk 2 RS that spends real time on track, that separation is the point. A front-wheel-drive car putting this much torque through the front tires needs the front end to stay settled as you roll back onto the throttle at the exit. It also needs the dampers to soak up a curb strike without shoving the nose wide. With a single combined adjuster, fixing one of those problems usually costs you some of the other. Nitron’s Mk 2 Focus RS NTR-R3 kit lets you tune each one on its own. Hose-mounted reservoirs sit up front, piggyback units sit on the rear dampers, and the rear follows the OEM suspension layout using the factory mounts. You get Nitron’s top-tier damper on the RS without having to redesign the back of the car to fit it.

Specialized Bi-Axis Hose Fittings

The Mk 2 Focus RS has a crowded engine bay. The transverse five-cylinder and its plumbing leave little open space around the front strut towers, which makes routing reservoir hoses the fiddly part of any remote-reservoir install on this car. Nitron’s exclusive Bi-Axis fittings swivel on two planes where the hose meets the damper. That lets each front hose on the Mk 2 Focus RS NTR-R3 point exactly where it needs to go, rather than forcing a tight bend or rubbing against nearby components. The result is a cleaner install and hoses that stay clear through full suspension travel and steering lock.

Unique Technology

Nitron’s NTR-R3 is the same damper architecture that has won races and set lap records across international motorsport. It is built around a large-diameter piston and an ultra-strong piston rod. A bigger piston moves more oil for a given amount of shaft travel, so each click of adjustment makes a clearer, more repeatable change. That is why a driver can feel the difference between settings instead of guessing at it. Moving the high- and low-speed compression adjusters onto the reservoirs makes them easy to reach. The extra oil volume also keeps damping steady as temperatures climb through a long stint. On a heavy-nosed car like the Mk 2 Focus RS, consistent front damping late in a session is what keeps your braking points where you left them.
- Basic Damper Design:
  1. End Eye / Top Mount
  2. Damper Piston & Shim Stack
  3. Shaft / Rod
  4. Floating / Separator Piston
  5. Suspension Oil
  6. Compressed Nitrogen Gas

Bespoke Engineering

No two Nitron Mk 2 Focus RS NTR-R3 coilovers leave the bench quite the same. Each one is hand-built to order, with springs and valving chosen around the car’s actual use. That might be a road-registered RS doing occasional track days, a time-attack build on slicks, or something in between. Hard-anodized components and titanium hardware keep the dampers light and protect them from corrosion, so the kit holds up to motorsport abuse and to the salted winter roads many of these cars still see. When the car changes, the dampers can change with it. Every Nitron NTR-R3 unit can be fully serviced and rebuilt, and revalving for new tires, more power or a different series is part of how this kit is meant to be owned.

Features

Hose & piggyback reservoir types
OEM rear suspension type
16 clicks of high compression
26 clicks of low compression
24 clicks of rebound
Preload adjuster
3-way independent adjustment
Full alloy body
Consists of 4 coilovers, reservoirs, hoses, and top mounts
Hand made to order

Specifications

Coilover Type: NTR-R3
Adjustment Type: 3-way independent
Adjustment: 16 clicks of high compression / 26 clicks of low compression / 24 clicks of rebound
Reservoir Type:
- Front: Hose
- Rear: Piggyback
Rear Suspension Type: OEM
Droplinks Included: No
Recommended Spring Rates:
- FRS – Fast Road Spec:
  - Front: 400lbs/inch (70N/mm)
  - Rear: 350lbs/inch (61N/mm)
- TDS – Track Day Spec:
  - Front: 457lbs/inch (80N/mm)
  - Rear: 400lbs/inch (70N/mm)

Applications

Ford Focus RS: C307, Mk 2 | 2009-2010

Other Suspension Kits for Mk 2 Focus RS

NTR-R1 Coilover Kit

Notes

Custom spring rates also available, please contact us directly here for more information or for a consultation on custom rates
Images used for illustration purposes only; specific details, finishes and end fittings may differ from that shown

Frequently Asked Questions

What does 3-way adjustment mean on Nitron’s Mk 2 Focus RS NTR-R3 Coilover Kit? It means rebound, low-speed compression and high-speed compression each have their own adjuster. Low-speed compression controls body movement under braking, turn-in and throttle. High-speed compression controls how the damper reacts to sharp hits like curbs and bumps. Because the circuits are independent, you can firm up body control without making the car harsh over curbing.
Why does the Mk 2 Focus RS NTR-R3 kit use hose reservoirs up front and piggyback reservoirs in the rear? It matches the reservoir style to the space available at each end. Hose-mounted front reservoirs fit around the RS engine bay and put the compression adjusters within easy reach. Nitron’s Bi-Axis fittings line the hoses up cleanly. At the rear, piggyback reservoirs sit directly on the dampers, which keeps the install tidy.
Does the Mk 2 Focus RS NTR-R3 kit require changes to the rear suspension? No. Nitron’s Mk 2 Focus RS NTR-R3 kits use an OEM-type rear suspension layout that bolts to the factory rear mounting points. The rear subframe and arms stay as Ford built them. That keeps the rear geometry close to stock while the NTR-R3 dampers give you far more control over how the rear behaves.
Are top plates included with the Mk 2 Focus RS NTR-R3 kit? Yes. Nitron top plates come with every kit, so there is nothing extra to source for the front. New top plates also mean you start without the play and noise that worn factory mounts often develop on higher-mileage Mk 2 RS cars, and that helps you feel the adjustments more clearly.
Should I choose the Nitron NTR-R3 over the Nitron NTR-R1 for my Focus RS? The Nitron NTR-R3 makes sense if you track the car regularly and want to tune individual damping circuits. The Nitron NTR-R1 uses a single combined adjuster and no reservoirs, which suits fast road use and occasional track days. The NTR-R3 adds separate high- and low-speed compression, plus reservoirs that keep damping more consistent over long sessions.
Can the Nitron Mk 2 Focus RS NTR-R3 be revalved after it is delivered? Yes. Every NTR-R3 damper can be fully serviced and rebuilt, which includes revalving and spring changes if the car’s spec changes. Moving to slicks, adding power or switching to a different type of event are all good reasons to revisit the setup.

About Nitron Suspension

Nitron Suspension has been at the forefront of precision suspension engineering since 1998, founded by Guy Evans with the goal of building high-performance shocks for enthusiasts and professionals alike. Over 200 dealers now carry Nitron products across Europe, Asia, the US, Australasia, and Africa. In 2008, the company moved into a dedicated facility in the UK’s Motorsport Valley, adding dynamometers, 5-axis CNC machines, and 3D CAD capabilities to support both growing demand and continued product development. A second expansion came in 2023 with a new office in Murrieta, California. The team behind every Nitron product draws from deep backgrounds in machining, materials technology, hydraulics, bike engineering, and F1 racing, with many engineers bringing firsthand experience as competitive drivers and riders. That depth of knowledge across both the technical and competitive sides of motorsport shapes every product Nitron develops.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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Nitron NTR-R3 Coilover Kit for C307 Ford Focus RS [NTCFO012R3]

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Nitron NTR-R3 Coilover Kit for C307 Ford Focus RS

Specialized Bi-Axis Hose Fittings

Unique Technology

Bespoke Engineering

Features

Specifications

Applications

Other Suspension Kits for Mk 2 Focus RS

Notes

Frequently Asked Questions

About Nitron Suspension

Reviews