The Lanier Impact14 rear shock is a complete replacement suspension unit for 65cc KTM Husqvarna GasGas motocross platforms. It is intended for riders and workshops looking for a consistent, fully engineered damper assembly rather than working around the limitations of a basic or worn OEM shock. On small-capacity bikes, rear shock behaviour has a strong influence on traction, chassis stability and rider confidence as pace increases.

Suspension Design & Control

The Impact14 is built around a steel body construction with a bladder system to maintain stable damping performance under repeated use. The internal design is focused on providing a usable and predictable adjustment range, allowing meaningful changes to rebound and compression behaviour rather than overly narrow or vague adjustment windows. This approach helps maintain consistent response across a full moto, rather than the shock changing character as heat builds.

Key Features

• Complete rear shock absorber for 65cc motocross applications
• Steel body construction for durability and consistent operation
• Bladder system to support stable damping performance
• Wide adjustment range for rebound and compression tuning
• DLC-coated shaft for reduced friction and improved durability
• Shim-based internal design for fine-tuning and serviceability
• Available with or without spring to suit rider-specific setup

Setup Considerations

Rear shock performance is heavily influenced by spring selection, rider weight and overall chassis balance. Supplying the unit without a spring allows the setup to be matched correctly rather than relying on a generic compromise. As with any suspension change, the final result depends on how the shock is integrated with the front end and the bike’s overall setup, not the component in isolation.