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Description

Nissan Z34 370Z True Rear Fairlady Z (08-20) BC Racing ZX coilover kit 9/5 kg/mm

The BC Racing ZX coilover kit 370Z True Rear (part number D-121-ZX) is a coilover kit adjustable in height and damping, also simply called a coilover, for the Nissan 370Z and Fairlady Z (Z34), model years 2008 to 2020, in True Rear version. The spring rate is 9 kg/mm front and 5 kg/mm rear.

The ZX True Rear is BC Racing’s 3-way coilover kit for the 370Z, made for competitive track work, long sessions and demanding drifting. The series combines the DS and the ER in one kit.

The upright monotube dampers have a dual piston and an external reservoir with race oil. At the rear the Z34 gets a complete strut with the spring around the damper. You set low-speed compression, high-speed compression and rebound independently of each other.

Key benefits

• True Rear: a complete strut at the rear with the spring around the damper.
• 3-way adjustable: 20 clicks low-speed compression, 12 clicks high-speed compression, 30 clicks rebound.
• External reservoir: made for long sessions and competitive track work.
• Dual piston, digressive: firm control at slow movements.
• Race oil: with a very high viscosity index.
• Spring rate 9/5 kg/mm: the same basis as the BR and DS True Rear.
• Replaceable upper mount: camber plates on suitable kits, rubber top mounts optional.
• Rebuildable: the dampers can be rebuilt.

Suitable for

Nissan 370Z and Fairlady Z (Z34), model years 2008 to 2020, True Rear version

• Competitive track work
• Demanding drifting and long sessions
• Drivers who want to adjust low-speed and high-speed compression separately

Technical specifications

• Manufacturer: BC Racing
• Part number: D-121-ZX
• Series: ZX, 3-way with external reservoir
• Version: True Rear, a complete strut at the rear with the spring around the damper
• Spring rate front/rear: 9/5 kg/mm
• Damper design: upright monotube with dual piston and external reservoir, digressive, race oil with a very high viscosity index
• Damping: 3-way, 20 clicks low-speed compression, 12 clicks high-speed compression, 30 clicks rebound
• Ride height: infinitely adjustable via the damper body
• Top mounts: replaceable upper mount, camber plates on suitable kits, rubber top mounts optional
• Contents: 4 struts with dampers and springs, lower mounts, top mounts where applicable, adjustment spanners and warranty card with serial number
• Warranty: 1 year on manufacturing defects; noise from track use is not covered by the warranty

Fitting and delivery

This vehicle-specific kit replaces the original dampers and springs all round. Please note: BC Racing specifies that the body shell must be reinforced before a True Rear kit is fitted. A mechanic with experience of reservoir dampers is recommended, also for positioning the reservoirs. After setting up, have the wheel alignment reset. The delivery time is 1 to 2 weeks as long as the manufacturer has stock. If the kit is sold out at BC Racing, you can still order and we will let you know the delivery date.

The BC Racing D-121-ZX is the 3-way True Rear coilover kit for the Nissan 370Z Z34, with 20 clicks low-speed compression, 12 clicks high-speed compression and 30 clicks rebound.

Why choose this ZX coilover kit 370Z True Rear?

With the ZX True Rear you can set up the 370Z in detail: how it responds to body roll and braking, and how it handles kerbs and impacts. Together with the complete strut at the rear, you have the same freedom in height and setup front and rear. Bear in mind the reinforcement of the body shell that BC Racing specifies.

BC Racing coilover kits for the Nissan 370Z (Z34) True Rear

Overview of the BC Racing series for the Nissan 370Z (Z34) True Rear supplied by Race4DriftParts, with the BC Racing part number. Spring rates in kg/mm, front/rear.

For the standard version without True Rear, BC Racing has separate kits. Their part numbers start with D-30.

Frequently asked questions

What is the difference between the BC Racing ZX and ER True Rear coilover kits for the Nissan 370Z?

The ZX is 3-way adjustable, the ER 2-way. The ZX has separate low-speed and high-speed compression (20 and 12 clicks) plus 30 clicks rebound; the ER has 30 clicks compression and 30 clicks rebound. The ZX True Rear has 9/5 kg/mm, the ER True Rear 10/8 kg/mm.

Is the BC Racing ZX True Rear suitable for drifting with a Nissan 370Z?

Yes, BC Racing lists demanding drifting as an application of the ZX series. The ZX coilover kit 370Z True Rear is also made for competitive track work and long sessions.

Does the BC Racing ZX True Rear coilover kit fit every Nissan 370Z and Fairlady Z?

Yes, BC Racing releases the D-121-ZX for the 370Z and Fairlady Z (Z34), model years 2008 to 2020, with no exceptions in the application list. If you are unsure about a Roadster or NISMO version, please contact us.

What is the delivery time of the BC Racing ZX True Rear coilover kit for the Nissan 370Z?

The delivery time is 1 to 2 weeks as long as the manufacturer has stock. If the kit is temporarily unavailable, you can still order it and we will keep you informed.

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.