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BC Racing Coilovers – BMW New Six Cs (Weld) (68-75) [E9]

£1,049.00 Incl. VAT

BC Racing Coilovers BMW New Six Cs (Weld) (68-75). Default spring rates front 6 kg/mm / rear 5 kg/mm. Ride height adjusts independently of spring preload, and the dampers are rebuildable.

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SKU: BCR-I-44 Categories: , ,
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BC Racing Coilovers BMW New Six Cs (Weld) replace the standard dampers and springs with an adjustable, rebuildable setup. Chassis code E9. Fits 68-75 cars. Default spring rates are front 6 kg/mm / rear 5 kg/mm.

Ride height is set on the lower bracket rather than by compressing the spring. That keeps spring preload and ride height as two separate adjustments, which is the main practical reason people move off budget coilovers.

BC Racing Coilovers BMW New Six Cs (Weld) specification

Vehicle BMW New Six Cs (Weld) (68-75)
Chassis code E9
Manufacturer BMW
Brand BC Racing
Default spring rates Front: 6 kg/mm / Rear: 5 kg/mm
SKU BCR-I-44

Available kit configurations

Each configuration is the same damper and spring package with a different top mount arrangement. The kit code is the BC Racing part number for that build.

Configuration Kit code Top mount
BR Series – RA: Pillowball front / rubber rear I-44-BR-RA a pillowball top mount at the front and rubber at the rear

Which series for the BMW New Six Cs (Weld)?

  • BR Series gives you 30-way rebound adjustment and full height adjustment independent of spring preload.

Spring rates and what is in the box

This kit ships at 6 kg/mm front and 5 kg/mm rear. The rates are matched front to rear for a balanced setup on the road. Rates are chosen by BC Racing per application, so they suit a fast road and occasional track car as supplied. If the car is built for something more specific, a track weapon or a car carrying a lot of aero, the rates can be changed without replacing the dampers.

The kit covers all four corners and includes the dampers, springs, lower brackets, locking collars and the adjuster spanners. Top mounts depend on the configuration you pick from the table above. Anything that is worn on the car already, drop links, bushes, top mount bearings, is worth checking while the suspension is apart.

Fitting and setting up BC Racing Coilovers BMW New Six Cs (Weld)

Set corner heights on level ground with the driver weight accounted for, then roll the car and settle the suspension before measuring again. Ride height changes on the bracket, damping on the adjuster knob.

Middle of the range is the sensible starting point. Move a few clicks at a time and keep notes, because chasing damping settings from memory rarely ends well.

The dampers are rebuildable. When they eventually need attention they can be stripped and revalved instead of binned, and spring rates can be changed later without replacing the whole kit.

Worth reading if you are new to this: how a coilover works and why height and preload are separate adjustments.

BC Racing Coilovers BMW New Six Cs (Weld) questions

Will BC Racing Coilovers BMW New Six Cs (Weld) fit without modification?

The kit is cut to the BMW New Six Cs (Weld) damper and strut dimensions and uses the standard mounting points on the E9 chassis. No cutting or welding is needed for a standard car.

How low will the BMW New Six Cs (Weld) go on these?

Height is adjustable across the full range of the lower bracket. How low you can usefully run depends on your wheel and tyre size and how the car is used, so set it to suit how the car is actually used.

What spring rates do BC Racing Coilovers BMW New Six Cs (Weld) come with?

Front: 6 kg/mm / Rear: 5 kg/mm as standard. The springs are a standard ID, so rates can be changed later without replacing the dampers.

Do I need an alignment afterwards?

Yes. Camber and toe both move as the car comes down, so book the alignment once the ride height is set and the suspension has settled.

Are these road legal?

Adjustable suspension is legal for road use in the UK. Keep the ride height sensible, make sure nothing fouls at full lock or full compression, and tell your insurer the car has been modified.

If you are not sure which configuration suits your car, send us the registration and what the car is used for and we will confirm the right BC Racing Coilovers BMW New Six Cs (Weld) spec before you order.

More from this range: BC Racing coilovers. Other BMW kits: BMW X3 AWD, BMW M2 Competition (Rear Integrated) RWD, BMW M5 RWD.

Additional information

Brand

Vehicle Manufacturer

Kit Configuration

Spring Rate

Will these fit my car?
This kit is built for the BMW New Six Cs (Weld) (68-75). The drivetrain and year span in the name matter, as BC make separate kits for different generations and driveline layouts, so if your car had a facelift or you are unsure which variant you have, tell us the registration or exact spec and we will confirm the right kit.

What can I adjust?
Ride height adjusts independently of spring preload, so you set the height you want without wrecking the damper stroke, and damping adjusts to tune the ride. This configuration comes with pillow ball top mounts, the sharper track-focused choice. After fitting, get the geometry set up, as lowering changes toe and camber on most cars.

What do the spring rates mean?
This kit ships with front 6 kg/mm / rear 5 kg/mm as standard, chosen by BC for this car as a balance of control and road manners. Firmer or softer rates are usually available to order if you have a specific use in mind, from comfortable fast road to competition, so tell us what you are building and we will advise.

Can I daily drive them?
Yes, the BR series is BC Racing’s road and track all-rounder, and with the damping backed off it lives happily on UK roads. Expect a firmer, more controlled ride than stock rather than harshness, and remember the dampers are rebuildable, so the kit is a long-term fitment rather than a consumable.

Availability

BC Racing kits are imported for your order

We work directly with BC UK rather than through a middleman, which puts your kit on the fastest schedule available to us. Allow 3 to 5 weeks from the day you order.

Your order starts the moment you pay

The kit is processed and imported as soon as payment is made, so nothing sits waiting at our end.

Before you order

Tell us the car and the specification you are after and we will confirm what is available and where it sits in the schedule.

Red Suzuki Swift Sport ZC31S at a racing circuit, fitted with BC Racing coilovers

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