TACX FLUX 2 SMART TRAINER Belt Tension Slip

Belt Tensioner Service Kit

The internal tensioner arm is prone to mechanical fatigue and structural twisting under high torque loads. This deformation causes the idler pulley to misalign with the belt's travel path, resulting in a loss of static tension and subsequent slippage. Replacing the arm with the reinforced service kit restores the necessary spring-loaded force to maintain the belt's friction against the flywheel drive pulley.

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Poly-V Drive Belt (Replacement)

Prolonged operation with a failing tensioner or standard material fatigue leads to belt stretching and glazing of the contact ribs. Once the elastomer loses its coefficient of friction or the tensile members within the belt elongate beyond the tensioner's take-up range, the belt will slip during high-torque pedal strokes.

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