The Arrowmax AM-910037 Belt Tensioner is a compact upgrade aimed at Serpent 4X owners who want dependable belt tension control to support smooth torque transfer and predictable on-track behaviour.
Made for the Serpent 4X series including Project 4X PRO EP (SER400032), this tensioner lets you fine tune belt tension to improve traction response and cut down on premature component wear.
Installation is user friendly; make sure belts are free of debris and correctly routed before locking in adjustments. A brief test run and recheck will ensure tension stays within your chosen setup window.
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