Does the Nitron Mk 2 Focus RS NTR-R1 Coilover Kit keep the factory rear suspension layout?

Yes. This Mk 2 Focus RS NTR-R1 kit uses an OEM-type rear suspension configuration that bolts to the factory rear mounting points. You do not need to modify the rear subframe or arms, which keeps the install simpler and leaves the rear geometry close to how Ford designed it while giving you better damping control.

How does the combined 2-way adjustment on the NTR-R1 work?

One adjuster on each damper changes bump and rebound together along a single curve that Nitron tunes for the car. That makes the kit easy to set up, since you go firmer or softer with one control instead of balancing two separate circuits. It is a practical way to switch between a road setting and a track setting.

Are top plates included with Nitron's Mk 2 Focus RS NTR-R1 coilover kit?

Yes. Top plates come with the kit, so you do not need to source separate mounts or reuse worn factory pieces. Fresh top plates also take away a common source of clunks and vague steering feel on higher-mileage Mk2 RS chassis.

Can the Nitron Mk 2 Focus RS NTR-R1 be driven daily, including through winter?

Yes. Nitron builds the NTR-R1 for road and track use, and the low-friction internals help ride quality on broken pavement. The hard-anodized and titanium-finish components resist corrosion from road salt and wet weather. Because the springs and valving are specified per build, you can ask for a setup aimed at street comfort.

What is the difference between the NTR-R1 and NTR-R3?

The Nitron NTR-R1 uses combined 2-way adjustment and no remote canister. The Nitron NTR-R3 adds separate high- and low-speed compression control along with rebound, and uses remote reservoirs. The NTR-R1 shares much of its internal hardware with the NTR-R3, so you get race-derived damping for less money and with simpler setup.

Can the Nitron Mk 2 Focus RS NTR-R1 kit be serviced or revalved later?

Yes. Every Nitron Focus RS NTR-R1 damper can be fully serviced, so you can rebuild it after heavy track mileage or revalve it if the car’s spec changes. That might mean stickier tires, more power, or a move from road use to dedicated track days.

Description

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Description

Nitron NTR-R1 Coilover Kit for C307 Ford Focus RS

The Nitron Mk 2 Focus RS NTR-R1 Coilover Kit solves the problem most Mk2 RS owners hit sooner or later. The factory dampers are fine on a cold B-road but lose control once a few hard laps put heat into them, and the soft rebound lets the nose wander under heavy braking. Nitron built this kit around the Focus’ front end, where the strut stays put while the separate knuckle does the steering. Because of that layout, damper quality shows up directly in how cleanly the car turns in and how well it holds a line under load. The rear follows the OEM suspension layout, so the Nitron Mk 2 Focus RS NTR-R1 kit bolts into the factory mounting points without changes to the rear subframe or arms. One adjuster per corner sets bump and rebound together, which means a quick change between road and track settings takes minutes in the paddock, not an afternoon on a laptop.

Unique Technology

Nitron developed their Mk 2 Focus RS NTR-R1 straight out of its full race program, and it shares a lot of internal hardware with the flagship NTR-R3. The difference is packaging. Leaving out the remote canister keeps the Nitron NTR-R1 compact enough to sit in the stock locations on a five-cylinder RS. The ultra-low friction seals and bushings let the damper react to small inputs that a stiffer, stickier unit would ignore. On a car this nose-heavy, that is the gap between a front end that skips over mid-corner bumps and one that stays planted. Fade resistance holds up over a full track session, so the setting you dial in on lap one still feels the same on lap fifteen.
- 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

Every Nitron Mk 2 Focus RS NTR-R1 kit is hand-built to order in the UK, not pulled off a shelf. Spring rates and valving are chosen around how the car will be used, whether that means a daily-driven RS on standard ride height or a dedicated track car running sticky rubber and a remapped engine. Nitron uses hard-anodized and titanium-finish components to cut weight and resist corrosion. That matters on a car that often sees road salt and wet winters, since the factory units tend to corrode first in exactly those conditions. Every damper in the kit can be fully serviced and revalved later, so if the car’s use changes down the line, the Nitron NTR-R1 can be rebuilt to suit rather than replaced.

Features

OEM rear suspension type
Internal reservoir type
2-way combined adjustment
Full alloy body
Preload adjuster
Combined 24 clicks of adjustment
Nitrogen gas charged
Precision bearing spacers supplied as required
Consists of 4 coilovers and top mounts
Hand made to order

Specifications

Coilover Type: NTR-R1
Adjustment Type: 2-way combined
Adjustment: 24 clicks combined
Rear Suspension Types: 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-R3 Coilover Kit

Notes

Custom spring rates also available
Please feel free to 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.
Precision bearing spacers supplied as required

Frequently Asked Questions

Does the Nitron Mk 2 Focus RS NTR-R1 Coilover Kit keep the factory rear suspension layout? Yes. This Mk 2 Focus RS NTR-R1 kit uses an OEM-type rear suspension configuration that bolts to the factory rear mounting points. You do not need to modify the rear subframe or arms, which keeps the install simpler and leaves the rear geometry close to how Ford designed it while giving you better damping control.
How does the combined 2-way adjustment on the NTR-R1 work? One adjuster on each damper changes bump and rebound together along a single curve that Nitron tunes for the car. That makes the kit easy to set up, since you go firmer or softer with one control instead of balancing two separate circuits. It is a practical way to switch between a road setting and a track setting.
Are top plates included with Nitron’s Mk 2 Focus RS NTR-R1 coilover kit? Yes. Top plates come with the kit, so you do not need to source separate mounts or reuse worn factory pieces. Fresh top plates also take away a common source of clunks and vague steering feel on higher-mileage Mk2 RS chassis.
Can the Nitron Mk 2 Focus RS NTR-R1 be driven daily, including through winter? Yes. Nitron builds the NTR-R1 for road and track use, and the low-friction internals help ride quality on broken pavement. The hard-anodized and titanium-finish components resist corrosion from road salt and wet weather. Because the springs and valving are specified per build, you can ask for a setup aimed at street comfort.
What is the difference between the NTR-R1 and NTR-R3? The Nitron NTR-R1 uses combined 2-way adjustment and no remote canister. The Nitron NTR-R3 adds separate high- and low-speed compression control along with rebound, and uses remote reservoirs. The NTR-R1 shares much of its internal hardware with the NTR-R3, so you get race-derived damping for less money and with simpler setup.
Can the Nitron Mk 2 Focus RS NTR-R1 kit be serviced or revalved later? Yes. Every Nitron Focus RS NTR-R1 damper can be fully serviced, so you can rebuild it after heavy track mileage or revalve it if the car’s spec changes. That might mean stickier tires, more power, or a move from road use to dedicated track days.

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-R1 Coilover Kit for C307 Ford Focus RS [NTCFO012R1]

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Nitron NTR-R1 Coilover Kit for C307 Ford Focus RS

Unique Technology

Bespoke Engineering

Features

Specifications

Applications

Other Suspension Kits for Mk 2 Focus RS

Notes

Frequently Asked Questions

About Nitron Suspension

Reviews