Adventure STX 46 Shock Absorber - AP 661

Öhlins STX46 Adventure Rear Shock – Aprilia Tuareg 660

The Öhlins STX46 Adventure rear shock absorber (AP 661) is a high-performance suspension upgrade engineered specifically for the Aprilia Tuareg 660 adventure motorcycle. Designed to enhance both off-road capability and long-distance touring comfort, the STX46 improves rear-wheel traction, chassis stability, and suspension control across a wide range of riding conditions.

The shock is built around Öhlins’ proven STX single-tube damping architecture, utilizing a 46 mm piston and high-pressure nitrogen gas system to deliver consistent hydraulic damping performance. This monotube design maintains stable internal pressure and reduces cavitation, ensuring predictable suspension response during aggressive riding and extended adventure travel.

An external piggyback reservoir improves thermal stability and damping consistency under demanding riding conditions. The shock also features adjustable compression and rebound damping, allowing riders to precisely tune suspension performance for varying terrain, rider weight, and luggage loads.

A remote hydraulic spring preload adjuster allows quick sag adjustments without tools, making it easy to compensate for additional passenger or luggage weight during adventure touring.

Designed specifically for the Tuareg 660’s lightweight rally-inspired chassis, the STX46 rear shock provides improved suspension sensitivity, increased traction on loose surfaces, and enhanced stability during high-speed gravel riding and technical off-road sections.

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Key Features

• Developed specifically for Aprilia Tuareg 660 adventure motorcycles

• Öhlins STX46 single-tube damping technology

• 46 mm piston diameter for precise damping control

• High-pressure nitrogen gas-charged shock absorber

• External piggyback reservoir for improved thermal stability

• Adjustable compression damping

• Adjustable rebound damping

• Remote hydraulic spring preload adjuster

• Hard-anodized precision CNC-machined components

• Fully serviceable and rebuildable construction

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Performance Benefits

• Increased rear-wheel traction on gravel and loose terrain

• Improved chassis stability during aggressive off-road riding

• Greater comfort during long-distance adventure travel

• Consistent suspension performance under heavy loads

• Enhanced ride feedback and rider confidence

The advanced hydraulic damping system allows the rear suspension to maintain better tire contact with the ground, improving traction and control across mixed surfaces such as gravel, sand, and uneven trails.

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Technical Specifications

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Fitment

• Aprilia Tuareg 660 (2022–Present)

• Aprilia Tuareg 660 Rally

This suspension upgrade significantly improves the Tuareg 660’s capability in adventure touring, rally-style riding, and technical off-road terrain, delivering improved control, stability, and rider confidence.