3DRC Serpent Project 4X Belt Tensioner
The perfect option to calm down the front belt of your Serpent Project 4X car. Run your belt with lower tension for more efficient drive train. The belt tensioner weights only 2-grams without hardware and is easy to install.
Note: You need 2x 3x6x2,5mm Ball bearings and 2x M3x10mm Button Head Screws and 1x M3x6mm Button Head Screw.
