The 6061-T6 alloy shock absorbers filled with oil (Injected with 500cSt silicon oil) and sealed cover,which is durable and has a good resistance effect.
The original spring wire diameter is 1.16 mm, The black progressive spring installed on the shock absorber（wire diameter of 1.1mm）. GPM will also include an additional silver progressive spring（1.2mm wire diameter） in the package, which can be replaced according to your own needs
The front or rear shock absorber （centre distance is 71mm）, The GPM shock shaft diameter is 2.5mm, same as the original size.
Progressive spring design, more dynamic adaptability, spring stiffness changes with load (soft first and then hard), can better adapt to different road conditions or load conditions.
