Does the Nitron Elise NTR-R1 FastRoad fit every K-series S2 Elise?

Yes. The Nitron Elise NTR-R1 FastRoad coilover kit fits all S2 Lotus Elise models with the Rover K-series engine. Because every kit is sprung and valved to order, Nitron can tailor the setup to the specific car and how it’s driven.

How does the Nitron S2 Elise NTR-R1 FastRoad help in wet conditions?

On a light car like the S2 Elise, grip in the wet depends on how well each tire stays pressed into the surface. The Nitron S2 Elise NTR-R1 FastRoad uses road-biased spring rates and low-friction dampers that keep the wheels following the road instead of unloading over bumps. That gives you more predictable grip and clearer feedback on damp or greasy roads.

How does the Nitron S2 Elise NTR-R1 FastRoad compare with the ClubSport and RacePro 3?

The Nitron S2 Elise NTR-R1 FastRoad and ClubSport share the same NTR-R1 damper with combined 2-way adjustment. The FastRoad uses softer, road-biased springs, while the ClubSport uses slightly stiffer springs for owners who spend more time on track. The RacePro 3 is the full-race kit, with independent 3-way adjustment for dedicated competition cars.

Does the Nitron Elise NTR-R1 FastRoad need mounting brackets?

No. The Nitron Elise NTR-R1 FastRoad fits the S2 Elise’s factory double wishbone suspension directly, with no mounting brackets required. The install stays simple, and the original mounting points are left untouched, so the car can be returned to standard later if you ever want to.

Can the Nitron S2 Elise NTR-R1 FastRoad be rebuilt later?

Yes. Every Nitron S2 Elise NTR-R1 FastRoad damper is fully serviceable, so it can be rebuilt, revalved or fitted with different springs. For a K-series Elise you plan to keep and drive for years, that means the suspension can be kept in top condition, or moved toward a firmer setup, instead of being replaced.

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Description

Nitron NTR-R1 FastRoad Coilover Kit for S2 Lotus Elise (with K-series engine)

On a damp road, a light car’s grip depends almost entirely on how well each tire stays pressed into the surface, and the K-series S2 Elise is very light. Worn or poorly matched dampers let the wheels unload over every ripple, and a wet back road quickly becomes a guessing game. The Nitron Elise NTR-R1 FastRoad coilover kit is built to fix that. Nitron sets the FastRoad up with softer, road-biased spring rates than the ClubSport kit, so the S2 can follow the contour of the road instead of skipping over it. The low-friction NTR-R1 dampers keep each wheel loaded and the steering clear, whether the surface is dry, greasy or soaked. The kit fits every Rover K-series S2 Elise. One adjuster per corner sets bump and rebound together, so you can soften it for a wet commute or firm it up for a dry track day in a few clicks. No mounting brackets are needed, and the Nitron S2 Elise NTR-R1 FastRoad bolts straight into the factory double wishbone suspension.

Unique Technology

Nitron developed the NTR-R1 from its race program, and much of its internal hardware is shared with the NTR-R3 that competes in international motorsport. There’s no remote canister, so each damper stays compact and the install is a simple bolt-in. Very low internal friction lets the damper start working as soon as the wheel moves. On a car where so little weight sits over each tire, that responsiveness is what holds the contact patch on the road over small bumps and broken edges, and it’s most noticeable when grip is already scarce. The Nitron NTR-R1 also resists fade. The damping holds steady through a long drive or a full track session, so the S2’s balance stays consistent from start to finish.
- 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

Each Nitron Elise NTR-R1 FastRoad kit is hand-built after the order is placed, with springs and valving matched to the K-series S2 Elise and to a road-first brief. That suits owners who drive their Elise year-round, use it for weekend runs and the occasional track day, and want it to stay supple instead of turning into a stiffly sprung track car. Hard-anodized and titanium-finish components keep weight down on a car built around low mass, and they resist corrosion from wet roads, winter grime and long periods in a damp garage. The kit is also made to be maintained for the long term. Every Nitron NTR-R1 damper can be fully serviced and revalved, and the springs can be changed. The kit can be rebuilt for years and moved toward a firmer setup if the car’s use changes.

Features

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 coilover assemblies
Hand made to order

Specifications

Coilover Type: NTR-R1 FastRoad
Adjustment Type: 2-way combined
Adjustment: 24 clicks combined
Mounting Brackets: Not required
Recommended Spring Rates:
- Front: 400lbs/inch (70N/mm)
- Rear: 450lbs/inch (79N/mm)

Applications

Lotus Elise: S2 | 2001-2005
Lotus Elise 111: S2 | 2001-2005
Lotus Elise 111S: S2 | 2001-2005
Lotus Elise Sport 135: S2 | 2001-2005
Lotus Elise Sport 135R: S2 | 2001-2005
Lotus Elise Sport 190: S2 | 2001-2005

Other Suspension Kits for S2 Lotus Elise (with K-series engine)

Notes

This kit is specific to S2 Elise models with the K-series engine
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.
Precision bearing spacers supplied as required

Frequently Asked Questions

Does the Nitron Elise NTR-R1 FastRoad fit every K-series S2 Elise? Yes. The Nitron Elise NTR-R1 FastRoad coilover kit fits all S2 Lotus Elise models with the Rover K-series engine. Because every kit is sprung and valved to order, Nitron can tailor the setup to the specific car and how it’s driven.
How does the Nitron S2 Elise NTR-R1 FastRoad help in wet conditions? On a light car like the S2 Elise, grip in the wet depends on how well each tire stays pressed into the surface. The Nitron S2 Elise NTR-R1 FastRoad uses road-biased spring rates and low-friction dampers that keep the wheels following the road instead of unloading over bumps. That gives you more predictable grip and clearer feedback on damp or greasy roads.
How does the Nitron S2 Elise NTR-R1 FastRoad compare with the ClubSport and RacePro 3? The Nitron S2 Elise NTR-R1 FastRoad and ClubSport share the same NTR-R1 damper with combined 2-way adjustment. The FastRoad uses softer, road-biased springs, while the ClubSport uses slightly stiffer springs for owners who spend more time on track. The RacePro 3 is the full-race kit, with independent 3-way adjustment for dedicated competition cars.
Does the Nitron Elise NTR-R1 FastRoad need mounting brackets? No. The Nitron Elise NTR-R1 FastRoad fits the S2 Elise’s factory double wishbone suspension directly, with no mounting brackets required. The install stays simple, and the original mounting points are left untouched, so the car can be returned to standard later if you ever want to.
Can the Nitron S2 Elise NTR-R1 FastRoad be rebuilt later? Yes. Every Nitron S2 Elise NTR-R1 FastRoad damper is fully serviceable, so it can be rebuilt, revalved or fitted with different springs. For a K-series Elise you plan to keep and drive for years, that means the suspension can be kept in top condition, or moved toward a firmer setup, instead of being replaced.

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 FastRoad Coilover Kit for S2 Lotus Elise (with K-series engine) [NTCLO012_FR]

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Nitron NTR-R1 FastRoad Coilover Kit for S2 Lotus Elise (with K-series engine)

Unique Technology

Bespoke Engineering

Features

Specifications

Applications

Other Suspension Kits for S2 Lotus Elise (with K-series engine)

Notes

Frequently Asked Questions

About Nitron Suspension

Reviews