BMW Z4 M E85 (06-08) 6/8kg.mm RM Series
The BC Racing RM series feature high quality damping adjustable monotube inverted dampers at the front or front and rear, depending on vehicle. The RM coilovers offer the majority of the features of the BR series but with the additional benefit of the inverted damper unit. Inverting the damper unit brings with it a number of advantages.
Unsprung weight is reduced by moving the oil and gas reservoir way from the hub and attaching it to the shell. Unsprung weight is vital to a cars performance as a lighter wheel and hub assembly which readily moves in response to road bumps will have more grip when tracking over an imperfect road.
The MA series coilover kits are supplied with aluminium camber adjustable pillowball front top mounts and aluminium rear top mounts with rubber centres or no rear top mounts