Rebound Piston Assembly for Sphere Suspension Systems

The Dal Soggio 1P.AS-PISTONERITORNO Rebound Piston Assembly is a replacement suspension component intended for use within compatible Dal Soggio Sphere rebound damping systems.

Listed under Sphere Kit Spare Parts and Rebound Parts, this assembly forms part of the hydraulic circuit responsible for controlling fork extension after the suspension has been compressed.

The rebound piston assembly works within the damping cartridge to regulate hydraulic oil flow during the return stroke. Together with the associated valving components, it contributes to controlling rebound speed and maintaining suspension stability as the fork extends.

Unlike an individual rebound piston, this product is supplied as a rebound piston assembly, making it suitable for servicing or replacing the corresponding internal assembly during a Sphere cartridge rebuild.

The exact internal composition of the assembly can vary according to the Sphere system specification, so individual included components should be confirmed using the applicable Dal Soggio exploded diagram or service documentation.

Because rebound damping performance depends on correct piston orientation, valving configuration, assembly sequence, and suspension setup, installation should be performed by an experienced suspension technician.

Key Features

• Genuine Dal Soggio rebound piston assembly for compatible Sphere suspension systems
• Forms part of the hydraulic rebound circuit that controls fork extension speed
• Supplied as an assembly for suspension servicing, rebuilding, and internal component replacement
• Cataloged within the Dal Soggio Sphere Kit Spare Parts and Rebound Parts ranges
• Designed for professional suspension maintenance where correct assembly and valving are essential

Application & Compatibility

The 1P.AS-PISTONERITORNO Rebound Piston Assembly is intended for use within compatible Dal Soggio Sphere Kit suspension systems.

Exact compatibility may depend on the Sphere generation, cartridge configuration, fork application, and internal damping specification. The part number should therefore be checked against the correct Dal Soggio parts diagram before installation.

Function

During fork extension, hydraulic oil is routed through the rebound damping circuit. The rebound piston assembly forms part of this system and contributes to controlling oil flow and hydraulic resistance during the return stroke.

This damping action helps regulate how quickly the suspension extends after an impact or compression event, supporting chassis stability, wheel control, and consistent suspension behavior.

Installation Note

Correct assembly orientation, valving configuration, fastening torque, oil specification, and cartridge setup are critical to proper suspension operation.

Installation should be carried out by a qualified suspension technician or in accordance with the applicable Dal Soggio technical documentation.

Use only in compatible Dal Soggio Sphere suspension systems and verify the exact internal application before installation.