VANQUISH H10 Optic 89mm Alloy Progressive Shock Upgrade H10089F/R by GPM  [H10089F/R]

Adjustable 89mm progressive shocks

This oil-filled, 6061-T6 alloy shock set is designed as a direct upgrade for the VANQUISH H10 Optic platform and compatible RTR kits. Each shock is supplied with a black progressive spring (wire diameter 1.0mm) and an adjustable top spring retainer to vary preload and effective spring rate. The dampers are sealed and injected with 350cSt silicone oil for consistent damping feel at model scale.

Key mechanical notes taken from the original parts: center-to-center length is 89mm allowing fitment front or rear, the shock shaft diameter is increased from the original 3.0mm to 3.5mm for improved stiffness, and the progressive spring gives a softer initial stroke that ramps up under load to help adapt to different surface or payload conditions. This is an RC-scale accessory intended for suspension tuning and replacement use only.

Installation is straightforward for the listed VANQUISH H10 Optic kits: remove the factory unit, retain mounting hardware if reusable, and fit the replacement at the same mounting points. Use the top spring retainer to adjust initial spring compression and test incrementally to find the desired balance between compliance and control.

Use these 6061-T6 alloy progressive shocks to tune spring feel and damping on VANQUISH H10 Optic 1/10 models, adjusting the top retainer and testing on your typical track surface to dial ride characteristics.