Specifications
- Brand
- AST
- Part #
- ACU-B1406S
- UPC
- astACU-B1406S

AST 2019+ BMW 1 Series F40 5100 Series Coilovers
$3982.08
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Fits 2016-2022 BMW X1. AST 5100 Series coilovers offer adjustable rebound and ride height for improved road balance and grip.
Key Features
- Direct fit — verified for 2016-2022 BMW X1, 2016-2022 Mini Cooper Clubman, and 2017-2022 Mini Cooper Countryman
- Monotube dampers — offer a large piston for precise rebound damping control and responsiveness
- Adjustable rebound — allows fine-tuning with 12 distinct positions
- Adjustable ride height — lets you set your vehicle's stance
- Front coilover design — integrates spring and damper
- Rear divorced setup — maintains a factory-like configuration for comfort
Product Details
Already running a performance setup on your BMW X1? This AST 5100 Series coilover kit pairs well with other suspension upgrades. These coilovers are built to give you better road balance for daily driving, maximizing grip by controlling your car's rebound and ride height. They include springs and are designed to use your OEM top mounts.
The front dampers are a coilover design, while the rear maintains a divorced setup, similar to the factory setup. This approach results in a more comfortable ride that still achieves excellent road balance. The kit features vehicle-specific, fixed spring rates for the rear. AST's extensive development and testing process informs the initial setup. You can easily fine-tune settings to your preference by adjusting the rebound knob or changing the ride height. The monotube design uses a large piston for precise rebound damping control, preventing aeration and foaming for more responsive valving. These high-pressure dampers are also rebuildable at a certified AST service center.
Specifications
- Brand
- AST
- Manufacturer Part #
- ACU-B1406S
- UPC
- astACU-B1406S
Frequently Asked Questions
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AST 2019+ BMW 1 Series F40 5100 Series Coilovers
