AST: 4100 Series Coilover Kit: Gen 1
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AST: 4100 Series Coilover Kit: Gen 1

SKU:  ACS-B1301S
WEIGHT:  48.00 lbs
brand: AST
Our price: $1,999.95

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AST is one of the most advanced and high quality suspension manufacturers in the game. Any of their products will leave you completely satisfied and even more in love with your car than you thought possible

The Sportline 1, or 4100 series, is AST's "entry level" product, but this does not mean it is low quality or cheap. Even though it is the cheapest product available for MINIs, it is still leagues better than most other suspension.

  •     Monotube design
  •     Rebound adjustment with one knob.
  •     Adjust platform allows the use to adjust the ride height of your car.
  •     Specially designed to keep maximum stroke, even with a lower ride height, and are finished with a KTL coating for an extremely hardy finish.
Monotube Design

Monotube design is essential for performance. The oil and nitrogen are separated by a floating piston, and allows the use of a larger piston, increasing the damper performance and sensitivity felt by the driver, all this added together produces more grip, gives more control and driver feedback from your vehicle.
What is a rebound adjustment?

Rebound controls the rate of extension of your shock absorber. By changing the rebound you can directly change the characteristics of the vehicle.

Technical specifications:

  •     Floating piston design with high pressure nitrogen eliminates cavitation around the piston.
  •     22mm / 14mm diameter shaft struts, non-inverted.
  •     Steel cylinder body shocks, non-inverted.
  •     Rebound adjustable (''Singles'').
  •     Low friction seal.
  •     Adjuster knobs permanently mounted on the dampers, no need for special tools.
  •     Rubber bushings for ''eye'' shock mounts.
  •     Optional spherical top mounts.
  •     Optional DDP piston (double digressive).
  •     Rebuildable and fully serviceable.
  •     Optional custom valving.

Image shown is a representation of the actual product. Ordered product will have minor difference

This AST: 4100 Coilover Kit: Gen 1 is one of the many MINI Cooper Parts and Accessories that we carry and will fit the following MINI Cooper Models and Years:

Gen1 MINI:

R50 MINI Cooper Hatchback: 2002, 2003, 2004, 2005, 2006

R53 MINI Cooper S Hatchback: 2002, 2003, 2004, 2005, 2006

R52 MINI Cooper Convertible: 2004, 2005, 2006, 2007, 2008

R52 MINI Cooper S Convertible: 2004, 2005, 2006, 2007, 2008

R-Fifty WHAT?? Confused about what model MINI you have? We’re here to help. Check this out for more information.


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Customers' comments

These are the perfect addition to my JCW. I have a red over black JCW with the Xenon head lamps & black housings. These are the perfect way to tone down the brash bright red of the tail/brake lamp housings to match the front lamps. Not only do you eliminate the chrome but the housing itself is black thus darkening the appearance of the entire assembly. I would say these should be flying off the shelf but i don't want everyone to have a MINI that looks as good as mine.
Scott Hiskes

Just received my latest order for the R56 Gloss black hood scoop. Easy Install and great fit. Only issue is the gloss finish has major swirl scratches. Not sure if this was a return that got put back on the self or came from factory this way.
Tim Wagner

Ordered the rear set delete kit (with the seat belt hole option) planning on using it as a platform for my dogs instead of having the enter through the door and sit on the rear seat. After reading through the install procedures and prepping the car for install I noticed that there is only one bolt securing the delete kit. This may be ok for weight reduction but it not good for use with pets.
David Imes

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