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Description

BMW E90/E92 M3 True Rear Sedan/Coupe (06-13) BC Racing RM coilover kit 6/6 kg/mm

The BC Racing RM coilover kit M3 E92 True Rear (part number I-117-RM-MA) is a coilover kit adjustable in height and damping, also simply called a coilover, for the BMW M3 E90 and E92, with or without EDC, model years 2006 to 2013, in True Rear version. The spring rate is 6 kg/mm front and 6 kg/mm rear.

The BC Racing RM series focuses on track days, hill climbs and tarmac rally. In this True Rear version for the M3 E90 and E92, the spring also sits around the damper at the rear, so you can adjust the rear axle just as freely as the front.

On MacPherson struts BC Racing uses an inverted monotube on the RM, on other suspension types an upright monotube. The dampers are filled with fully synthetic oil with a very high viscosity index. Unlike the BR and DS kits in this range, the RM has pillowball top mounts or camber plates only at the front; at the rear the rubber or original mounting remains.

Key benefits

• Inverted monotube on MacPherson struts: the design that characterises the RM series.
• Digressive piston: plenty of control at slow body movements.
• Fully synthetic oil: with a very high viscosity index, for more consistent damping as the oil heats up.
• True Rear version: a strut with the spring around the damper at the rear.
• 30-click damping adjustment: compression and rebound adjusted together.
• Continuously adjustable ride height: via the damper body.
• Pillowball top mounts at the front: or camber plates, rubber or the original mounting at the rear.
• Rebuildable: the dampers can be rebuilt.

Suitable for

BMW M3 E90 Sedan and M3 E92 Coupe, rear-wheel drive, model years 2006 to 2013, with or without EDC (with EDC an EDC delete kit is required, not included); True Rear version; not for the M3 E93 Convertible

• Track days and circuit training sessions
• Hill climbs and tarmac rally
• An M3 used mainly for motorsport

Technical specifications

• Manufacturer: BC Racing
• Part number: I-117-RM-MA
• Series: RM, for track days, hill climbs and tarmac rally
• Version: True Rear, a strut with the spring around the damper at the rear as well; with EDC an EDC delete kit is required, not included
• Spring rate front/rear: 6/6 kg/mm
• Damper design: inverted monotube on MacPherson struts, upright monotube on other suspension types; fully synthetic oil with a very high viscosity index
• Damping: 30 clicks, compression and rebound simultaneously, digressive
• Ride height: continuously adjustable via the damper body
• Top mounts: pillowball top mounts or camber plates at the front, rubber or original mounting at the rear
• 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 front and rear. We recommend having it fitted by an experienced mechanic. Please note: BC Racing specifies that with a True Rear kit the body shell must be reinforced before fitting. BC Racing UK also reports that pillowball top mounts can transmit noise to the body in this application. For an M3 with EDC, BC Racing says an EDC delete kit is required, which you arrange separately; BC Racing does not supply it. BC Racing advises periodic greasing of the RM and ZR series and recommends them less for road use than the BR, DS, ER or ZX. After setting up, have the wheel alignment reset, because camber and toe change as well. The delivery time is 1 to 2 weeks as long as the manufacturer has stock. If the kit is temporarily sold out at BC Racing, you can still order and we will let you know the delivery date.

The BC Racing RM kit I-117-RM-MA also gives the BMW M3 E90 and E92 a strut at the rear, with fully synthetic oil, a digressive piston and 6 kg/mm springs all round.

Why choose this RM coilover kit M3 E92 True Rear?

Hill climbs and tarmac rally put heavy loads on a suspension. The RM series is made for that work, with fully synthetic oil and a digressive characteristic, and the True Rear setup gives you the same freedom of adjustment at the rear as at the front. Bear in mind that BC Racing wants the RM to receive periodic greasing and considers it less suitable for daily road use.

BC Racing coilover kits for the BMW M3 E90/E92 True Rear

Overview of the BC Racing series for the BMW M3 E90/E92 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, with the original separate spring and damper at the rear, BC Racing has separate kits for the M3 E90 and E92. Their part numbers start with I-13 (with EDC) or I-39 (without EDC).

Frequently asked questions

Which BMW M3 versions does the BC Racing RM True Rear kit I-117 fit?

The M3 E90 Sedan and the M3 E92 Coupe from model years 2006 to 2013, with or without EDC. With EDC an EDC delete kit is required, which you arrange separately. This kit is not intended for the M3 E93 Convertible.

What is the difference between the BC Racing RM and DS True Rear kits for the M3 E92?

The RM is made for track days, hill climbs and tarmac rally and uses fully synthetic oil; the DS is track-focused but more usable on the road. The RM coilover kit M3 E92 True Rear has pillowball top mounts at the front, the DS front and rear. BC Racing advises periodic greasing of the RM.

Is the BC Racing RM True Rear kit for the BMW M3 E92 suitable for daily use?

Not as a first choice: BC Racing recommends the RM and ZR series less for road use than the BR, DS, ER or ZX. The RM also needs periodic greasing. If you drive your M3 every day, look at the BR or DS kit in this range.

What is the delivery time of the BC Racing RM True Rear kit for the BMW M3 E90/E92?

The delivery time is 1 to 2 weeks as long as the manufacturer has stock. If it is briefly sold out, you can still order the kit and we will let you know when it 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.