Trango Beta Stick EVO Replacement Spring Long. Replacement Spring for Beta Stick EVO Specifications for Trango Beta Stick EVO Replacement Spring Long: Manufacturer: Trango Size: Long Weight: 1 oz Package Contents: Trango Beta Stick EVO Replacement Spring Long Trango 21905-50:Beta Stick EVO Replacement Spring Long Trango 21905-50:Beta Stick EVO Replacement Spring Long