{"product_id":"ast-coilovers-for-bmw-x1-f48-x2-f39-1-series-f40-2-series-f44-f46-mini-f54-f60","title":"AST Coilovers for BMW X1 F48, X2 F39, 1 Series F40, 2 Series F44 \/ F46 \u0026 Mini F54 \/ F60","description":"\u003cp\u003eOne AST kit family covers the X1 F48, X2 F39, 1 Series F40, 2 Series Gran Coupe F44 and Gran Tourer F46, and the Mini Clubman F54 and Countryman F60, including the xDrive and ALL4 versions AST list. Not every series is listed for every car: where one is limited, its Series option says so.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSeven kits, from the 5100 Street to the 5300 3-Way, with TCO versions for the Mini\u003c\/li\u003e\n\u003cli\u003eX1 F48 and 2 Series Gran Tourer F46: 5100 Street, 5200 2-Way and 5300 3-Way\u003c\/li\u003e\n\u003cli\u003eIncludes the X2 M35i, 1 Series M135i xDrive, 2 Series M235i xDrive and Mini JCW ALL4 models\u003c\/li\u003e\n\u003cli\u003eMonotube dampers throughout, with a 12-position rebound adjuster\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eChoose your series\u003c\/h3\u003e\n\u003cp\u003eEvery AST damper is a monotube: nothing inside can aerate or foam, which AST say keeps the valving responsive.\u003c\/p\u003e\n\u003ch4\u003e5100 Street, inverted (AST ACU)\u003c\/h4\u003e\u003cp\u003eThe 5100 Street kit with inverted monotube dampers, adjustable for rebound damping and ride height. The front dampers are coilovers; at the rear the spring and damper stay separate, as the car was built. Springs come in the kit, which works with the car's original top mounts. AST fix the rear spring rate for each car. The rebound adjuster has 12 positions, and the dampers can be rebuilt.\u003c\/p\u003e\n\u003cp\u003eAST part number: ACU-B1406S\u003c\/p\u003e\n\u003ch4\u003e5100 Street TCO, coilovers front and rear (AST ACU)\u003c\/h4\u003e\u003cp\u003eThe 5100 Street kit in TCO form: inverted monotube coilovers at the front and the rear, adjustable for rebound damping and ride height. Springs come in the kit, which works with the car's original top mounts. The rebound adjuster has 12 positions, and the dampers can be rebuilt.\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003eACU-B1407S (Mini only): Mini Clubman F54, Mini Countryman F60\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch4\u003e5100 Street Performance (AST ACT)\u003c\/h4\u003e\u003cp\u003eThe 5100 Street kit with camber-adjustable top mounts added at the front. Inverted monotube dampers, adjustable for rebound damping and ride height; coilovers at the front, and a separate spring and damper at the rear as the car was built. Adjustable camber lets you set the angle of the front wheels, and with it how the front end grips. AST fix the rear spring rate for each car. The rebound adjuster has 12 positions, and the dampers can be rebuilt.\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003eACT-B1406S (not X1 F48 or 2 Series Gran Tourer): X2 F39, 1 Series F40, 2 Series Gran Coupe F44, Mini Clubman F54, Mini Countryman F60\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch4\u003e5100 Street Performance TCO (AST ACT)\u003c\/h4\u003e\u003cp\u003eThe 5100 Street Performance kit in TCO form: inverted monotube coilovers front and rear, adjustable for rebound damping and ride height. Camber-adjustable front top mounts are included, and solid rear ones where the car needs them. Adjustable camber lets you set the angle of the front wheels, and with it how the front end grips. The rebound adjuster has 12 positions, and the dampers can be rebuilt.\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003eACT-B1407S (Mini only): Mini Clubman F54, Mini Countryman F60\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch4\u003e5100 Clubracing (AST ACC)\u003c\/h4\u003e\u003cp\u003eThe 1-way kit for cars that see track days as well as daily miles: inverted monotube coilovers front and rear, with top mounts at both ends. The front top mounts adjust for camber; the rear ones are solid. Spring rates can be changed to suit. Ride height adjusts, the rebound adjuster has 12 positions, and the dampers can be rebuilt.\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003eACC-B1407S (not X1 F48 or 2 Series Gran Tourer): X2 F39, 1 Series F40, 2 Series Gran Coupe F44, Mini Clubman F54, Mini Countryman F60\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch4\u003e5200 2-Way Motorsport (AST RIV)\u003c\/h4\u003e\u003cp\u003eRebound and compression damping each have their own adjuster, and ride height adjusts too. Compression damping sets how quickly the suspension moves in; rebound sets how quickly it extends again. The dampers work with external reservoirs, mounted remotely. The struts are inverted, which AST use because that design copes with heavy sideways loads and with braking. Where the car needs them, camber-adjustable front and solid rear top mounts are included. Spring rates can be changed, and the rebound adjuster has 12 positions. AST made it first of all for track driving.\u003c\/p\u003e\n\u003cp\u003eAST part number: RIV-B1407S\u003c\/p\u003e\n\u003ch4\u003e5300 3-Way Motorsport (AST RAC)\u003c\/h4\u003e\u003cp\u003eThree separate damping adjusters - rebound, low-speed compression and high-speed compression - plus adjustable ride height. Low-speed compression looks after slow, gradual movement of the suspension; high-speed compression looks after sharp, hard hits. The dampers work with external reservoirs, mounted remotely. The struts are inverted, which AST use because that design copes with heavy sideways loads and with braking. Where the car needs them, camber-adjustable front and solid rear top mounts are included. Spring rates can be changed, and the rebound adjuster has 12 positions. AST's kit for the most committed circuit drivers.\u003c\/p\u003e\n\u003cp\u003eAST part number: RAC-B1407S\u003c\/p\u003e\n\u003cp\u003eThe photos are AST's own sample shots of each series, not of the kit for your car, which is made for its suspension and differs in detail.\u003c\/p\u003e\n\u003ctable class=\"spec-table\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003e5100 Street, inverted (AST ACU); 5100 Street TCO, coilovers front and rear (AST ACU); 5100 Street Performance (AST ACT); 5100 Street Performance TCO (AST ACT); 5100 Clubracing (AST ACC); 5200 2-Way Motorsport (AST RIV); 5300 3-Way Motorsport (AST RAC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAST part numbers\u003c\/th\u003e\n\u003ctd\u003eACU-B1406S, ACU-B1407S, ACT-B1406S, ACT-B1407S, ACC-B1407S, RIV-B1407S, RAC-B1407S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ctable class=\"fitment-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eVersion\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e1-Series\u003c\/td\u003e\n\u003ctd\u003eF40 116d, 116i, 118d, 118i, 120d, 120d xDrive, 120i, 128ti, M135i xDrive\u003c\/td\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e2 Series Gran Coupe\u003c\/td\u003e\n\u003ctd\u003eF44 216d, 218d, 218i, 220d, 220d xDrive, 220i, 220i xDrive, 228i, 228i xDrive, M235i xDrive\u003c\/td\u003e\n\u003ctd\u003e2019-2025\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e2 Series Gran Tourer\u003c\/td\u003e\n\u003ctd\u003eF46 218i, 220d, 220d X-drive, 220i\u003c\/td\u003e\n\u003ctd\u003e2014-2018\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eX1\u003c\/td\u003e\n\u003ctd\u003eF48 18d, 18d X-drive, 18i, 18i X-drive, 20d, 20d X-drive, 20i, 20i X-drive, 25d X-drive, 25i X-drive\u003c\/td\u003e\n\u003ctd\u003e2014-2022\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eX1\u003c\/td\u003e\n\u003ctd\u003eF48 28i\u003c\/td\u003e\n\u003ctd\u003e2014-2022\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eX2\u003c\/td\u003e\n\u003ctd\u003eF39 18d, 18d xDrive, 18i, 18i xDrive, 20d, 20d xDrive, 20i, 20i xDrive, 25d xDrive, 28i, 28i xDrive\u003c\/td\u003e\n\u003ctd\u003e2017-2023\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eX2\u003c\/td\u003e\n\u003ctd\u003eF39 M35i\u003c\/td\u003e\n\u003ctd\u003e2017-2023\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMini\u003c\/td\u003e\n\u003ctd\u003eClubman\u003c\/td\u003e\n\u003ctd\u003eF54 Cooper, Cooper ALL4, Cooper JCW ALL4, Cooper S, Cooper S ALL4\u003c\/td\u003e\n\u003ctd\u003e2015-2024\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMini\u003c\/td\u003e\n\u003ctd\u003eCountryman\u003c\/td\u003e\n\u003ctd\u003eF60 Cooper, Cooper ALL4, Cooper JCW ALL4, Cooper S, Cooper S ALL4\u003c\/td\u003e\n\u003ctd\u003e2015-2024\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eFitting notes\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e5200 and 5300 kits (AST's note, given for the Mini Clubman and Countryman): the rear comes with an extender for the adjuster knob, which needs a 12.5mm hole drilled, and the rear dampers are non-inverted.\u003c\/li\u003e\u003c\/ul\u003e","brand":"AST Suspension","offers":[{"title":"5100 Street (inverted)","offer_id":57521028694396,"sku":"ACU-B1406S","price":2508.0,"currency_code":"GBP","in_stock":true},{"title":"5100 Street TCO - 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