Lower tensioning system for spearguns with roller roller heads, especially for inverter system rollers and for use with 3 rubbers.

The frame layout allows the rubbers to be loaded in an extremely backward position, virtually close to the trigger, thereby optimising the overall performance of the propulsion system.

On this chassis, you can mount almost any speargun reel on the market (additional screws are included).

Small and light and made entirely of laser cut stainless steel, it is very easy to install on your speargun.