Description
BMW F87 M2 True Rear (16-18) BC Racing ER coilover kit 6/6 kg/mm
The BC Racing ER coilover kit M2 True Rear (part number I-143-ER) is a coilover kit adjustable in height and damping, also simply called a coilover, for the BMW M2 F87, model years 2016 to 2018, in True Rear version. The spring rate is 6 kg/mm front and 6 kg/mm rear.
The ER series is BC Racing’s 2-way adjustable coilover kit with external reservoir, made for serious track and competition use. You set compression and rebound each in 30 clicks, independently of each other, so you can tune the M2 precisely to the circuit and the tyres.
The dampers are monotube with a double piston, digressive and filled with fully synthetic oil with a very high viscosity index. As a True Rear version, the rear of the M2 F87 is also a coilover with the spring around the damper.
Key benefits
- 2-way adjustable: compression and rebound independently of each other, each in 30 clicks.
- External reservoir: monotube dampers with a double piston and a separate reservoir.
- Digressive damping: firm control over slow body movements.
- Fully synthetic oil: with a very high viscosity index.
- True Rear: a coilover at the rear with the spring around the damper.
- Spring rate 6/6 kg/mm: the same front and rear.
- Concave lock ring: holds the set ride height in place.
- Check valve as an option: available alongside optional rubber top mounts.
- Rebuildable: the dampers can be rebuilt.
Suitable for
BMW M2 F87 Coupe with rear-wheel drive, model years 2016 to 2018, in True Rear version. This kit is not listed for the M2 Competition: if you have an M2 Competition, please contact us first. For the standard M2 F87, not in True Rear version, BC Racing has the I-75 kits.
- Serious track days and club races with the M2
- Adjusting compression and rebound separately
- Tuning to track tyres
Technical specifications
- Manufacturer: BC Racing
- Part number: I-143-ER
- Series: ER, 2-way with external reservoir
- Version: True Rear (integrated rear), a complete strut at the rear with the spring around the damper
- Spring rate front/rear: 6/6 kg/mm
- Damper design: monotube with double piston and external reservoir, digressive, fully synthetic oil with very high viscosity index
- Damping: 2-way, 30 clicks compression and 30 clicks rebound, adjustable independently of each other
- Ride height: infinitely adjustable via the damper body
- Top mounts: 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
The kit is vehicle-specific and replaces the original dampers and springs. We recommend having it fitted by an experienced mechanic. Please note: BC Racing requires the body shell to be reinforced before a True Rear kit is fitted. After adjusting the ride height, have the alignment re-measured; then set up compression and rebound step by step on a test day. The delivery time is 1 to 2 weeks as long as the manufacturer has stock. If the kit is not immediately available from BC Racing, you can still order it and we will keep you informed.
The BC Racing ER kit I-143-ER for the BMW M2 F87 True Rear has 30 clicks of compression and 30 clicks of rebound, adjustable separately, and an external reservoir.
Why choose this ER coilover kit M2 True Rear?
With the ER you set the compression and extension of the M2 separately, whereas with the BR you adjust both together. This lets you tune the car more precisely to a circuit, a type of tyre or your driving style. The external reservoir, the synthetic oil and the True Rear design make the kit suitable for an M2 that is often and seriously on track.
BC Racing coilover kits for the BMW M2 F87 True Rear
Overview of the BC Racing series for the BMW M2 F87 True Rear 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 | I-143-BR-RH | 6/6 | 30 clicks, linear, pillowball top mounts front and rear | Road with the occasional track day |
| ER (this kit) | I-143-ER | 6/6 | 2-way, 30 clicks per direction, external reservoir | Serious track and competition use |
| ZX | I-143-ZX | 6/6 | 3-way (20/12/30 clicks), external reservoir | Competition, long sessions, drifting |
For the standard version of the BMW M2 F87 without True Rear, BC Racing has separate kits. Their part numbers start with I-75.
Frequently asked questions
Is the BC Racing ER True Rear coilover kit suitable for the BMW M2 F87 and the M2 Competition?
For the M2 F87 from 2016 to 2018 it is; it is not listed for the M2 Competition. If you drive an M2 Competition, please contact us.
What is the difference between the BC Racing ER and ZX True Rear coilover kits for the BMW M2 F87?
The ER is 2-way adjustable, the ZX 3-way. In addition to rebound, the ZX has separate compression settings for low and high speed (20 and 12 clicks). The ER coilover kit M2 True Rear is intended for serious track use, the ZX for competition, long sessions and demanding drifting.
Can I adjust the ride height of the BC Racing ER True Rear coilover kit on my BMW M2 F87 infinitely?
Yes, the ride height is infinitely adjustable via the damper body, and thanks to the True Rear design at the rear as well. Always have the alignment re-measured after adjusting.
When will the BC Racing ER True Rear coilover kit for the BMW M2 F87 be delivered?
You will receive the kit within 1 to 2 weeks as long as the manufacturer has stock. If BC Racing temporarily has run out, you can still order it and we will give you the expected delivery date.
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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