Bilstein AS2-R Series Shock Absorber

 

Bilstein AS2-R Series Shock Absorber is built for customers who need a serious motorsports damper rather than a basic replacement shock. It is built for racers who need a premium, modular damper with reservoir technology and more adjustment potential than a basic smooth-body shock. It is aimed at race builds, custom suspension packages, and demanding setups where damping control is a key part of how the vehicle puts power down and stays composed.

The design gives builders a durable foundation for dialing in ride control around track surface, chassis balance, tire package, and driver preference. The 46mm aluminum monotube body helps reduce weight while supporting heat dissipation, and the remote reservoir package adds oil volume and tuning flexibility. For customers working with dirt, asphalt, desert, or mixed competition environments, that control helps the suspension respond with more consistency as conditions change.

The clear anodized threaded body gives the shock a purposeful motorsports appearance while supporting coilover use where the correct hardware and spring package are selected. The finish and body layout are designed to support repeated service work, setup changes, and careful tuning without turning the shock into a disposable component. That matters for customers who maintain their own race program or work with a suspension specialist.

This range includes multiple stroke lengths from about 4.41 in through 9.12 in, plus single-adjustable rebound versions and triple-adjustable versions with rebound and high-speed and low-speed compression control. Rather than forcing every build into one length or tune, the series gives customers a focused range of motorsports choices that can be matched around ride height, available travel, mounting points, and the type of control the chassis needs. The result is a shock absorber that can be planned as part of a complete suspension system.

AS2-R dampers are designed for motorsports setups where customers are balancing grip, travel, heat control, and serviceability across changing track conditions. Customers should match the shock to the vehicle's suspension geometry, intended use, and sanctioning requirements before installation. Correct length, mount style, spring hardware, and tuning components are critical to getting the intended performance from this type of damper.

Whether customers are upgrading for advanced race tuning, dirt late model builds, asphalt chassis setup, or reservoir shock control, the Bilstein AS2-R Series Shock Absorber delivers a lightweight modular damper platform with serious adjustment potential. Now Available at LEER!

 

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Features & Specifications

Product Type: Suspension shock absorber

Brand: Bilstein

Series: AS2-R Series

Body Design: Threaded body screw top coilover

Body Material: Aluminum

Internal Design: Monotube

Finish: Clear anodized

Piston Diameter: 46mm

Reservoir: Remote reservoir

Adjustable Damping: Single adjustable rebound and triple adjustable options

Functionality:

• Supports premium motorsports suspension setups that need reservoir damping control.
• Helps customers tune grip and chassis balance across changing track conditions.
• Provides a lightweight aluminum damper body for race-focused builds.
• Supports coilover planning when the correct spring hardware is used.
• Offers adjustable choices for customers who need more setup control.
• Provides multiple travel lengths for different chassis layouts and suspension positions.
• Helps manage heat during repeated high-speed damping movement.

 

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Available Options

The Bilstein AS2-R Series Shock Absorber is available in multiple performance setups:

• Single Adjustable Rebound Versions -- A focused tuning choice for customers who want rebound control without the complexity of full compression adjustment.
• Triple Adjustable Versions -- A higher-control choice with rebound plus high-speed and low-speed compression adjustment for detailed race setup work.
• Short Stroke Versions -- Compact travel choices help fit tight chassis layouts.
• Long Stroke Versions -- Longer travel choices support applications that need more suspension movement and packaging room.
• Spring Seat Choices -- Selected versions are built around coilover use, while others require customers to confirm the correct spring hardware.

Choose single adjustable rebound versions for simpler tuning, or choose triple adjustable versions when the race setup needs more detailed compression and rebound control.

 

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Why Choose

This product is ideal for customers who want a lightweight reservoir shock with modular motorsports tuning capability.

• Remote reservoir technology adds oil volume and supports heat management during race use.
• Aluminum construction helps reduce weight while maintaining a strong damper platform.
• Adjustment choices let customers tune the shock around track conditions and driver preference.
• Threaded body construction supports precise coilover setup when paired with the correct hardware.
• Multiple stroke lengths help match the damper to the suspension travel plan.
• The clear anodized finish gives the shock a clean professional motorsports look.
• Modular construction supports service work and future setup changes.

 

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What's Included

• One Bilstein AS2-R Series shock absorber matched to the selected setup.
• Remote reservoir assembly where included with the selected setup.

Note: Confirm included components before installation.

 

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Installation Notes

• Confirm stroke length, adjustability type, reservoir placement, and mount style before installation.
• Confirm spring hardware, heims, pistons, and tuning components before assembly where required.
• Set reservoir routing and clearance so the hose and body do not contact moving suspension components.

Buyer is responsible for use in accordance with applicable vehicle, road, off-road, towing, racing, and local laws.

 

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Warranty Information

Bilstein motorsport shock absorbers in this series are backed by Bilstein's applicable limited 90-day warranty for eligible North American purchases. Coverage generally applies to defects in materials or workmanship and depends on proper installation, appropriate use, and the terms of the warranty program.

Warranty coverage typically excludes misuse, improper installation, modifications, incorrect setup, overloading, racing damage outside warranty terms, impact damage, tampering, or non-compliant use. Proof of purchase may be required for warranty claims.