BC Racing RM Series BMW M3 F80 / M4 F82 RWD (14-20), 3-bolt top mount
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- 14 days to returnUnfitted and in its original packaging
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- Collection at our shopCartagena, Spain
The RM Series features an inverted monotube shock absorber, with the oil and gas reservoir at the top, mounted to the bodywork. This arrangement reduces unsprung weight, allowing the tire to track the tarmac better and stop bouncing on rough surfaces. It also keeps the oil away from brake heat, which under intense use can travel up through the hub and soften the damping. The 42 mm piston rod adds resistance to lateral loads and keeps steering geometry stable.
Complete kit for all four wheels of the BMW M3 F80 / M4 F82 RWD (14-20), 3-bolt top mount, 7/14 kg/mm. Weighs 23 kg. Manufacturer part number I-49-RM-MA.
The front features an inverted shock absorber with adjustable camber pillowball top mounts , and the rear features rubber top mounts or no top mounts, depending on the application. The front axle allows for camber adjustment. Ride height is adjusted independently of spring preload, and the tapered bottom locking collar prevents the setting from shifting during use. Includes dust boots to protect the seals and a 1-year warranty against manufacturing defects.
Supplied with a single spring rate, 7/14 kg/mm.
Before you buy
The shock absorber is a cartridge housed inside a threaded body, with grease between the two parts to prevent metal-on-metal contact. This must be cleaned and reapplied periodically to avoid noise; it is simple maintenance that does not require opening or repressurizing the shock. For this reason, BC Racing positions this series for track use and recommends the BR, DS, ER, or ZX for daily-driven cars.
The front pillowball top mounts are a rigid attachment with no elastic element, and in some vehicles, they transmit slight knocking to the cabin. This does not indicate a defect, and BC Racing does not cover it under warranty nor accept returns for this reason. Configurations with rubber top mounts avoid this effect.
Not compatible with the convertible version.