{"product_id":"bc-racing-er-series-bmw-m3-f80-m4-f82-rwd-14-20-torreta-3-tornillos","title":"BC Racing ER Series BMW M3 F80 \/ M4 F82 RWD (14-20), 3-bolt top mount","description":"\u003cp\u003eWhat the ER Series provides is the ability to treat the two damping phases separately. Compression is adjusted via 30 clicks from the external reservoir, and rebound via another 30 from the top of the shock absorber. In practice, compression controls how much the nose dives under braking, which is where the grip for corner entry comes from, and rebound controls how quickly the suspension extends back up. If the front end unloads too quickly, the car understeers.\u003c\/p\u003e\u003cp\u003eComplete kit for all four wheels of the BMW M3 F80 \/ M4 F82 RWD (14-20), 3-bolt top mount. Weighs 23 kg. Manufacturer part number I-49-ER.\u003c\/p\u003e\u003cp\u003eFeatures  front and  rear. 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 with use. Includes dust covers to protect the seals and a 1-year warranty against manufacturing defects.\u003c\/p\u003e\u003cp\u003eThere are 4 spring rate combinations available. The one BC Racing defines as the default for this car  is 6\/12 kg\/mm.\u003c\/p\u003e\u003ch3\u003eBefore you buy\u003c\/h3\u003e\u003cp\u003eNot valid for the convertible version.\u003c\/p\u003e","brand":"BC Racing","offers":[{"title":"Default 6\/12 kg\/mm","offer_id":61096543158606,"sku":"0025232","price":2116.29,"currency_code":"EUR","in_stock":true},{"title":"7\/13 kg\/mm","offer_id":60767526945102,"sku":"0080272","price":2116.29,"currency_code":"EUR","in_stock":true},{"title":"7\/14 kg\/mm","offer_id":60767526846798,"sku":"0033184","price":2116.29,"currency_code":"EUR","in_stock":true},{"title":"12\/18 kg\/mm","offer_id":60767526912334,"sku":"0070735","price":2116.29,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0816\/7329\/0062\/files\/er-1-principal.jpg?v=1791353540","url":"https:\/\/driftandgrip.com\/en\/products\/bc-racing-er-series-bmw-m3-f80-m4-f82-rwd-14-20-torreta-3-tornillos","provider":"Drift \u0026 Grip","version":"1.0","type":"link"}