BC Racing ER Series (5-Bolt Top Mount) For BMW F20/F21 M140i

ER SERIES COILOVER

Our External reservoir ER Series comes with separate compression and rebound damping adjustment. The ER Series coilovers bring with them the high quality and unique features seen on the BR Series and RM Series but have the additional benefit of external reservoirs and the ability to allow the end user to individually adjust and set compression and rebound damping rates.

Key Features:

• Linear valving
• 30 clicks of compression adjustment via the external reservoirs
• 30 clicks of rebound adjustment from the top of the damper
• Ride height adjustment separate to spring preload
• Camber adjustable top mounts (depending on model)
• Monotube damper design
• Pillowball top mounts
• Bearing mounted upper spring platform
• Tapered bottom mount locking collar to prevent collar working loose
• Custom spring rates available
• All spare parts available with low lead times
• Dust boot to protect the damper seal
• 1 year manufacturer warranty

Fitment Years: 2014-2019
Model:  BMW 1 Series F20 2011-2019 (5-Bolt Top Mount)
BC Racing Part Number: I-37-ER

Spring rate: 6/8 KG/MM – Check options for other spring rates.