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Rear Anti-Roll Bar | Sway Bar By MAXX-G Performance Suspension | F55-F56-F57 Generation 3 MINI Cooper - 22mm Solid

Reduce body roll through their increased design stiffness over stock bars
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Availability: Direct Ship, Ship ETA Oct 29, 2020
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Product Details

Now offering the MAXX-G™ Performance Suspension line of rear anti-roll bars (aka: sway bars) for the Generation 3 MINI Coopers

The MAXX-G™ brand of a performance suspension, named for MAXIMUM GRIP and MAXIMUM CORNERING G-FORCE, are engineered to get the most fun and performance out of your MINI. Our ANTI-ROLL-KITs reduce body roll through their increased design stiffness over stock bars. The result: increased roll-stiffness, reduced body roll, more positive handling and added cornering grip in any performance-driving situation producing MAXIMUM GRINS :-) The addition of a MAXX-G rear sway bar is the quickest and easiest way to make drastic improvements to handling, body roll control, and make your MINI more fun to drive.

All MINI’s suffer from factory designed-in understeer.  And understeer is a buzz killer.  Installing a larger diameter rear anti-roll bar increases the rear roll stiffness of the rear suspension and shifts the handling balance from understeer (bad) toward neutral (more fun). This is one of the first modifications most any MINI owner does to move the fun meter and make the drive more exciting. The MAXX-G™ ANTI-ROLL-KIT comes with 3 sets of link connection points giving you control over the critical fine-tuning of your car’s handling characteristics.

MAXX-G™ ANTI-ROLL BAR Kits are made in The USA from military grade 4130 chrome-moly alloy steel and hot forged into exacting shape. Then each MAXX-G™ ANTI-ROLL BAR is finished with a long lasting double coat of HOT YELLOW powder coat and baked to an extremely durable and high gloss finish. Each MAXX-G™ ANTI-ROLL BAR Kit is supplied with a set of high durometer high performance greasable urethane bushings matched to the bar diameter, a set of new steel mounting brackets with bolts, a small tube of silicone grease and a set of locking split collars to keep everything centered.

Complete your suspension upgrade with a MAXX-G™ ANTI-ROLL-KIT.

Comes complete with performance urethane bushings, new mounting brackets and hardware kit.


  • Reduces body roll when driving in curves and during fast changes of direction.
  • Reduces body roll on lowered, standard height and lifted cars.
  • Reduces wheel loading difference between the inside and outside wheels during cornering.
  • Reduces understeer.
  • Increases side bite & overall grip. (Lateral Traction)
  • Adds performance driving fun & smiles.

Available in 2 diameters for the F55-F56-F57 Generation 3 platform.

  • 22mm solid | Recommended for spirited weekend driving
  • 25mm hollow | Recommended for cars with added suspension modifications, performance tires aggressive drivers.

Proudly Made in The USA using American materials and craftsman.

Previous Revisions
  • 70-520100
  • 70-521100

This Part Fits the Following Vehicles

Make Model Submodel Engine Year Chasis
MINI All All All All F55
MINI All All All All F56
MINI All All All All F57
*The above product applications have been written by ECS Tuning. All warranties, product application, fitment, and performance are the responsibility of ECS Tuning. For additional information see the terms of use.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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