How do firmer springs help an S2 Elise under heavy braking?

Under heavy braking, a mid-engined S2 Elise pitches forward and the rear goes light, which can make the car feel loose on corner entry. The Nitron Elise NTR-R1 ClubSport uses firmer spring rates than the FastRoad kit, so the car pitches less and more weight stays on the rear tires. That makes it more stable as you trail-brake toward the apex.

Does the Nitron S2 Elise NTR-R1 ClubSport fit all K-series cars?

Yes. The Nitron S2 Elise NTR-R1 ClubSport fits every S2 Lotus Elise with the Rover K-series engine. Every kit is sprung and valved to order, so the setup can be matched to the car’s tires and how hard it’s driven.

Who should choose the Nitron Elise NTR-R1 ClubSport over the FastRoad or RacePro 3?

The Nitron Elise NTR-R1 ClubSport suits K-series S2 owners who track their car regularly or run sticky tires but still drive it on the road. It uses the same NTR-R1 damper as the FastRoad with slightly stiffer springs. The RacePro 3 is the full-race kit, with independent 3-way adjustment for dedicated competition cars.

Does the Nitron S2 Elise NTR-R1 ClubSport require mounting brackets?

No. The Nitron S2 Elise NTR-R1 ClubSport fits the 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 Elise NTR-R1 ClubSport be serviced and revalved?

Yes. Every Nitron Elise NTR-R1 ClubSport damper is fully serviceable, so it can be rebuilt after a season of track days, revalved or fitted with different springs. If your K-series S2 moves toward competition or back toward the road, the setup can be updated to match.

Description

Additional Info

Shipping policy

BP PRICING DIFFERENCE

Reviews

Product Inquiry

Description

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

Brake hard into a tight corner in a mid-engined car and the nose dives while the rear goes light. That’s the moment an S2 Elise on track tires can start to feel loose. The Nitron Elise NTR-R1 ClubSport coilover kit is built to calm it down. Its spring rates are a step firmer than the FastRoad kit’s, so the K-series S2 pitches less under heavy braking. More weight stays on the rear tires, and the car stays stable as you trail the brakes toward the apex. That steadier platform lets you brake later and turn in with more confidence, lap after lap. The ClubSport still works on the road, but it’s clearly set up for owners whose Elise spends more time at the circuit than on the commute. One adjuster per corner sets bump and rebound together, so you can soften the car for the drive in and firm it up in the paddock. It fits all K-series S2 Elise models, needs no mounting brackets, and the Nitron S2 Elise NTR-R1 ClubSport bolts straight into the factory double wishbone suspension.

Unique Technology

The Nitron NTR-R1 is built from hardware developed in Nitron’s race program, and much of it is shared with the NTR-R3 that Nitron runs in international motorsport. Without a remote canister, each damper stays compact and installs with no hoses to route. Firmer springs only help if the dampers can keep them in check. The low-friction internals of the Nitron NTR-R1 respond quickly to the higher loads the ClubSport springs create, so the tires stay planted over curbs and rippled braking zones instead of skipping. Fade resistance matters too. A light Elise on sticky tires can lap hard for a long time, and the Nitron Elise NTR-R1 ClubSport holds its damping from the first lap of a session to the last.
- 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 ClubSport kit is hand-built to order, with springs and valving matched to the K-series S2 Elise and a track-leaning brief. That suits owners who drive to the circuit on track tires, run a full day of sessions and drive home again, as well as S2s that have become dedicated track-day cars with brake and engine upgrades to match. Hard-anodized and titanium-finish components keep weight off a car built around minimal mass, and they resist corrosion through wet track days and long winter layups. The dampers are designed to be maintained rather than replaced. Each Nitron NTR-R1 unit can be fully serviced and revalved, and the springs can be changed, so the setup can follow the car toward competition or back toward the road.

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 ClubSport
Adjustment Type: 2-way combined
Adjustment: 24 clicks combined
Mounting Brackets: Not required
Recommended Spring Rates:
- Front: 450lbs/inch (79N/mm)
- Rear: 525lbs/inch (92N/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

How do firmer springs help an S2 Elise under heavy braking? Under heavy braking, a mid-engined S2 Elise pitches forward and the rear goes light, which can make the car feel loose on corner entry. The Nitron Elise NTR-R1 ClubSport uses firmer spring rates than the FastRoad kit, so the car pitches less and more weight stays on the rear tires. That makes it more stable as you trail-brake toward the apex.
Does the Nitron S2 Elise NTR-R1 ClubSport fit all K-series cars? Yes. The Nitron S2 Elise NTR-R1 ClubSport fits every S2 Lotus Elise with the Rover K-series engine. Every kit is sprung and valved to order, so the setup can be matched to the car’s tires and how hard it’s driven.
Who should choose the Nitron Elise NTR-R1 ClubSport over the FastRoad or RacePro 3? The Nitron Elise NTR-R1 ClubSport suits K-series S2 owners who track their car regularly or run sticky tires but still drive it on the road. It uses the same NTR-R1 damper as the FastRoad with slightly stiffer springs. The RacePro 3 is the full-race kit, with independent 3-way adjustment for dedicated competition cars.
Does the Nitron S2 Elise NTR-R1 ClubSport require mounting brackets? No. The Nitron S2 Elise NTR-R1 ClubSport fits the 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 Elise NTR-R1 ClubSport be serviced and revalved? Yes. Every Nitron Elise NTR-R1 ClubSport damper is fully serviceable, so it can be rebuilt after a season of track days, revalved or fitted with different springs. If your K-series S2 moves toward competition or back toward the road, the setup can be updated to match.

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.

Reviews

There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

Product Inquiry

First Name (*required)

Last Name (*required)

Your E-Mail (*required)

Telephone Number (*required)

Country (*required)

Vehicle Year / Make / Model (*required)

Please Explain What do you want to do with your vehicle

Additional Information (optional)

I agree to the terms & conditions and privacy policy and to have Bulletproof Automotive LLC contact me for promotion, marketing and other purposes via email, phone or SMS message.

Nitron NTR-R1 ClubSport Coilover Kit for S2 Lotus Elise (with K-series engine) [NTCLO012_CS]

Guaranteed Safe Checkout

Nitron NTR-R1 ClubSport 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