AS3 FORGED GEAR CHANGE LEVER SHIFTER to fit BETA 125 250 300 REV3 EVO 2000-2019. AS3 Performance Forged Aluminium Gear Lever to fit Beta 125-300 Rev3, 125-300 Evo. 2000-2008 Beta 125-300 Rev3. AS3 Performance gear levers are cold forged from high strength and lightweight aluminium making them stronger and lighter than the standard levers.