How do firmer springs help an S1 Elise through quick direction changes?

On road-biased springs, an S1 Elise rolls further and takes longer to settle as it switches direction. The Nitron Elise NTR-R1 ClubSport uses firmer spring rates than the FastRoad kit, so the body takes a set faster and transitions with less delay. That makes the car sharper and quicker through chicanes, esses and tight sequences of corners.

Who should choose the Nitron S1 Elise NTR-R1 ClubSport?

The Nitron S1 Elise NTR-R1 ClubSport suits owners who track their car regularly, run sticky tires or have turned their S1 into a dedicated track-day car. It shares the same NTR-R1 damper as the FastRoad but uses slightly stiffer springs. Owners building a full race car may be better served by the Nitron RacePro 3.

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

No. The Nitron Elise NTR-R1 ClubSport fits the S1 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 NTR-R1 ClubSport be softened for road driving?

Yes. Each Nitron NTR-R1 damper has a single adjuster that sets bump and rebound together, so a few clicks per corner take the edge off for the drive to the circuit. You can firm the S1 back up in the paddock without balancing separate damping circuits, then back off again for the trip home.

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 the S1 Elise moves toward competition or back toward the road, the setup can be updated to match.

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Description

Nitron NTR-R1 ClubSport Coilover Kit for S1 Lotus Elise

Take an S1 Elise through a fast chicane on track tires and you’ll feel the gap between when you turn the wheel and when the body actually settles. On road-biased springs, the car rolls one way, has to unwind, then rolls back the other, and each change of direction costs a little time. The Nitron Elise NTR-R1 ClubSport coilover kit closes that gap. Its spring rates are a step firmer than the FastRoad kit’s, so the body takes a set faster, switches direction with less delay and stays flatter through esses and quick transitions. That’s the kind of sharpness an S1 needs once it’s running sticky rubber and spending regular days on circuit. The car still works on the road, but the ClubSport is clearly set up for owners whose S1 sees more laps than commutes. One adjuster per corner sets bump and rebound together, so it takes a few clicks to soften the car for the drive in and firm it up in the paddock. No mounting brackets are needed, and the Nitron S1 Elise NTR-R1 ClubSport fits straight into the factory double wishbone suspension.

Unique Technology

Inside each Nitron NTR-R1 is hardware from Nitron’s race program, much of it shared with the NTR-R3 that competes in international motorsport. The NTR-R1 doesn’t use a remote canister, so it stays compact and bolts in without any hoses to route. Firmer springs put higher loads through the dampers, and the Nitron NTR-R1 has the low-friction internals to respond quickly to them. That keeps the S1’s tires planted over curbs and rippled braking zones instead of skipping across them. Fade resistance matters just as much on a car this light, since it can lap hard for a long time without tiring its tires. 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

Every Nitron Elise NTR-R1 ClubSport kit is assembled by hand to order, with springs and valving matched to the S1 Lotus Elise and a track-leaning brief. That suits owners who drive to the circuit on track tires, run a full day and drive home, as well as S1s that have become dedicated track-day cars with engine and brake 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 winter layups. These dampers are made 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: S1 | 1996-2001

Other Suspension Kits for S1 Lotus Elise

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.
Precision bearing spacers supplied as required

Frequently Asked Questions

How do firmer springs help an S1 Elise through quick direction changes? On road-biased springs, an S1 Elise rolls further and takes longer to settle as it switches direction. The Nitron Elise NTR-R1 ClubSport uses firmer spring rates than the FastRoad kit, so the body takes a set faster and transitions with less delay. That makes the car sharper and quicker through chicanes, esses and tight sequences of corners.
Who should choose the Nitron S1 Elise NTR-R1 ClubSport? The Nitron S1 Elise NTR-R1 ClubSport suits owners who track their car regularly, run sticky tires or have turned their S1 into a dedicated track-day car. It shares the same NTR-R1 damper as the FastRoad but uses slightly stiffer springs. Owners building a full race car may be better served by the Nitron RacePro 3.
Does the Nitron Elise NTR-R1 ClubSport require mounting brackets? No. The Nitron Elise NTR-R1 ClubSport fits the S1 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 NTR-R1 ClubSport be softened for road driving? Yes. Each Nitron NTR-R1 damper has a single adjuster that sets bump and rebound together, so a few clicks per corner take the edge off for the drive to the circuit. You can firm the S1 back up in the paddock without balancing separate damping circuits, then back off again for the trip home.
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 the S1 Elise 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.

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Nitron NTR-R1 ClubSport Coilover Kit for S1 Lotus Elise [NTCLO010_CS]

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Nitron NTR-R1 ClubSport Coilover Kit for S1 Lotus Elise

Unique Technology

Bespoke Engineering

Features

Specifications

Applications

Other Suspension Kits for S1 Lotus Elise

Notes

Frequently Asked Questions

About Nitron Suspension

Reviews