Why does platform control matter on a Lotus 2-Eleven?

The Lotus 2-Eleven runs a front splitter and rear wing, and that aero works best at a consistent ride height. The Nitron 2-Eleven RacePro 3 lets you set low-speed compression and rebound to hold the body steady under braking and through fast corners. High-speed compression is set separately so curbs and bumps don’t upset the platform.

What does the 46mm piston do on the Nitron Lotus 2-Eleven RacePro 3?

The 46mm piston in the Nitron Lotus 2-Eleven RacePro 3 moves a larger volume of oil for every millimeter of travel. That gives the damper more precise control as loads build from braking, cornering and downforce. Each adjuster click also makes a clear, repeatable change, which helps when you’re refining the car’s setup.

How are the reservoirs mounted on the Nitron 2-Eleven RacePro 3?

The Nitron 2-Eleven RacePro 3 uses hose-mounted reservoirs at both ends, each connected to its damper by a hose. Nitron’s Bi-Axis fittings let each hose leave the damper at the correct angle, so routing past the wishbones and bodywork stays clean. Plan the reservoir locations before installation so the adjusters stay easy to reach.

How often should the Nitron 2-Eleven RacePro 3 be rebuilt?

Service intervals depend on how hard and how often the car runs. Many 2-Eleven owners have their Nitron 2-Eleven RacePro 3 dampers rebuilt between seasons, or sooner on a busy calendar. Every unit is fully serviceable, and revalving can be done at the same time if your tires, aero or series change.

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Description

Nitron RacePro 3 Coilover Kit for Lotus 2-Eleven

Lotus designed the 2-Eleven for the track first, and plenty of them have never carried a license plate. A car like that needs dampers that work at speed, and the Nitron 2-Eleven RacePro 3 coilover kit is built to Nitron’s full-race specification around a 46mm piston. Each corner gets independent adjustment of rebound, low-speed compression and high-speed compression. With its front splitter and rear wing pushing the car down, the 2-Eleven depends on a stable platform as much as on mechanical grip. Low-speed compression and rebound hold the body steady under braking and through fast corners, so the aero works from a consistent ride height. High-speed compression handles curbs and sharp bumps separately, letting the wheels absorb a hit without upsetting the platform. Hose-mounted reservoirs front and rear keep the compression adjusters within easy reach in the paddock. The kit includes mounting brackets so the Nitron Lotus 2-Eleven RacePro 3 bolts into the double wishbone suspension whichever side the steering wheel is on.

Specialized Bi-Axis Hose Fittings

With reservoirs at both ends, the 2-Eleven has four hoses that each need a secure route past the wishbones, brake lines and bodywork. That has to work whether the car is left-hand or right-hand drive. Nitron’s exclusive Bi-Axis fittings swivel on two planes where each hose leaves the damper. On the Nitron Lotus 2-Eleven RacePro 3, every hose can point straight toward its reservoir instead of being forced into a tight bend. Paired with the included brackets, that keeps the installation tidy on either version of the car. The hoses also stay clear through full bump, full droop and full steering lock.

Unique Technology

The 46mm piston is what sets the Nitron RacePro 3 apart. Each millimeter of shaft travel moves a larger volume of oil through the valving, so damping force builds accurately and the damper keeps more control in reserve as loads climb. On a 2-Eleven, that load comes from downforce at speed as well as from braking and cornering. The extra control keeps the car settled where a smaller damper would let the platform move, and each adjuster click makes a clear, repeatable change. The hose-mounted reservoirs add oil volume away from the damper body, so damping stays consistent through a long track session or a full race distance. Because high- and low-speed compression are adjusted independently at each reservoir, the Nitron 2-Eleven RacePro 3 lets an engineer refine one phase of the corner without disturbing the rest.
- 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 2-Eleven RacePro 3 kit is hand-built to order, with springs and valving specified for the car’s competition brief. That brief could be a track-day 2-Eleven on sticky tires, a car prepared for sprints and hill-climbs or a dedicated race car on slicks with an aero package to match. Hard-anodized components and titanium hardware keep weight down on a car built around minimal mass, and they resist corrosion on an open car that spends its life exposed in wet paddocks. A track car gets used hard, so its dampers need to be maintainable. Every Nitron RacePro 3 damper can be fully serviced and rebuilt, and it can be revalved for new tires, aero changes or a different series as the car develops.

Features

Hose reservoir 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 mounting brackets (LHD or RHD)
Hand made to order

Specifications

Coilover Type: RacePro 3
Adjustment Type: 3-way independent
Adjustment: 16 clicks of high compression / 26 clicks of low compression / 24 clicks of rebound
Reservoir Type: Hose
Mounting Brackets: Included (LHD or RHD)
Recommended Spring Rates:
- Front: 600lbs/inch (105N/mm)
- Rear: 800lbs/inch (140N/mm)

Applications

Lotus 2-Eleven: 2007-2011

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

Why does platform control matter on a Lotus 2-Eleven? The Lotus 2-Eleven runs a front splitter and rear wing, and that aero works best at a consistent ride height. The Nitron 2-Eleven RacePro 3 lets you set low-speed compression and rebound to hold the body steady under braking and through fast corners. High-speed compression is set separately so curbs and bumps don’t upset the platform.
What does the 46mm piston do on the Nitron Lotus 2-Eleven RacePro 3? The 46mm piston in the Nitron Lotus 2-Eleven RacePro 3 moves a larger volume of oil for every millimeter of travel. That gives the damper more precise control as loads build from braking, cornering and downforce. Each adjuster click also makes a clear, repeatable change, which helps when you’re refining the car’s setup.
How are the reservoirs mounted on the Nitron 2-Eleven RacePro 3? The Nitron 2-Eleven RacePro 3 uses hose-mounted reservoirs at both ends, each connected to its damper by a hose. Nitron’s Bi-Axis fittings let each hose leave the damper at the correct angle, so routing past the wishbones and bodywork stays clean. Plan the reservoir locations before installation so the adjusters stay easy to reach.
How often should the Nitron 2-Eleven RacePro 3 be rebuilt? Service intervals depend on how hard and how often the car runs. Many 2-Eleven owners have their Nitron 2-Eleven RacePro 3 dampers rebuilt between seasons, or sooner on a busy calendar. Every unit is fully serviceable, and revalving can be done at the same time if your tires, aero or series change.

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 RacePro 3 Coilover Kit for Lotus 2-Eleven [NTCLO018_RP3]

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Nitron RacePro 3 Coilover Kit for Lotus 2-Eleven

Specialized Bi-Axis Hose Fittings

Unique Technology

Bespoke Engineering

Features

Specifications

Applications

Notes

Frequently Asked Questions

About Nitron Suspension

Reviews