Description
Mazda ND MX-5 (15+) BC Racing ZX coilover kit 5/2.5 kg/mm
The BC Racing ZX coilover kit MX-5 ND (part number N-34-ZX) is a coilover kit adjustable in height and damping, also simply called a coilover, for the Mazda MX-5 ND, from model year 2015. The spring rate is 5 kg/mm front and 2.5 kg/mm rear.
The ZX series is BC Racing’s 3-way adjustable coilover kit for competitive track work, long sessions and demanding drifting. For the MX-5 ND it offers three separate damping adjustments and an external reservoir.
The ZX combines the upright monotube of the DS with the external reservoir of the ER. You set low-speed compression in 20 clicks, high-speed compression in 12 clicks and rebound in 30 clicks. The springs are 5/2.5 kg/mm.
Key benefits
- Three separate adjustments: 20, 12 and 30 clicks for low-speed and high-speed compression and rebound.
- External reservoir: the upright monotube works with a dual piston.
- Digressive damping: control over the slow movements of the body.
- Racing oil: with an ultra-high viscosity index.
- Replaceable upper mount: camber plates on suitable kits, rubber top mounts optional.
- Steplessly adjustable ride height: set via the damper body.
- Spring rate 5/2.5 kg/mm: the same spring stiffness as the other BC Racing kits for the ND.
- Rebuildable: the dampers can be rebuilt.
Suitable for
Mazda MX-5 ND from model year 2015. For an MX-5 RF: if in doubt, contact us and we will check the fitment in advance using your chassis number.
- Competition and long track sessions
- Drifting with an MX-5 ND
- An ND that is set up in detail for each circuit
Technical specifications
- Manufacturer: BC Racing
- Part number: N-34-ZX
- Series: ZX, 3-way with external reservoir for competition use
- Spring rate front/rear: 5/2.5 kg/mm
- Damper design: upright monotube with dual piston and external reservoir, digressive, racing oil with ultra-high viscosity index
- Damping: 3-way: 20 clicks low-speed compression, 12 clicks high-speed compression and 30 clicks rebound
- Ride height: steplessly adjustable via the damper body
- Top mounts: replaceable upper mount, camber plates on suitable kits, rubber top mounts optional
- Contents: dampers and springs front and rear, lower mounts, top mounts where applicable, adjustment spanners and warranty card with serial number
- Warranty: 1 year on manufacturing defects; with this competition series, noise is not covered by the warranty
Fitting and delivery
The ZX kit is made specifically for the MX-5 ND and replaces the original dampers and springs. We recommend having it fitted by an experienced mechanic and having the wheel alignment adjusted after setting the ride height. The delivery time is 1 to 2 weeks as long as the manufacturer has stock. If BC Racing does not have it in stock, you can still order it and we will keep you informed about the delivery.
The BC Racing ZX for the Mazda MX-5 ND (N-34-ZX) has an external reservoir, 3-way adjustment and springs of 5 kg/mm front and 2.5 kg/mm rear.
Why choose this ZX coilover kit MX-5 ND?
For anyone lining up on the grid with an ND, every setting counts. With this kit you set the behaviour during slow and fast movements separately and adjust rebound independently of that. That way you find the balance between grip and composure, on track and when drifting.
BC Racing coilover kits for the Mazda MX-5 ND
Overview of the BC Racing series for the Mazda MX-5 ND supplied by Race4DriftParts, with the BC Racing part number. Spring rates in kg/mm, front/rear.
| Series | Part number | Springs f/r | Damping | Intended for |
|---|---|---|---|---|
| BR | N-34-BR-RS | 5/2.5 | 30 clicks, linear, rubber top mounts front | Road with the occasional track day |
| DS | N-34-DS-DS | 5/2.5 | 30 clicks, digressive, rubber top mounts front | Track-focused, sporty road use |
| ER | N-34-ER | 5/2.5 | 2-way, 30 clicks per direction, external reservoir | Serious track and competition use |
| ZX (this kit) | N-34-ZX | 5/2.5 | 3-way (20/12/30 clicks), external reservoir | Competition, long sessions, drifting |
Frequently asked questions
Which Mazda MX-5 ND is the BC Racing ZX coilover kit suitable for?
BC Racing UK approves the ZX kit for the Mazda MX-5 ND from model year 2015; BC Racing’s European title mentions the Roadster. An RF is not listed separately, so if in doubt, contact us and we will check the fitment in advance.
What is the difference between the BC Racing ZX and ER for the Mazda MX-5 ND?
The ZX is 3-way adjustable and the ER 2-way. With the ZX coilover kit MX-5 ND you set compression separately for low and high speed; the ER has a 30-click compression adjustment. Both have an external reservoir and, for the ND, springs of 5/2.5 kg/mm.
Is the BC Racing ZX coilover kit for the MX-5 ND rebuildable?
Yes. The ZX dampers can be rebuilt, which is useful after a season of long track sessions.
What is the delivery time of the BC Racing ZX coilover kit for the Mazda MX-5 ND?
The delivery time is 1 to 2 weeks as long as the manufacturer has stock. If BC Racing is temporarily out of stock, you can still order and we will let you know when the kit is in.
Delivery outside the European Union: different shipping costs may apply. Don’t worry: we will email you as soon as possible after your order and agree the shipping with you. You are not committed to anything without your consent.
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