The Pearl P900 features a true round cam for a smooth linear feel and balanced action. The chain drive offers speed and durability plus the PowerShifter has three presets for a light, normal or heavy feel. Includes the Duo Beat beater which features a plastic (hard) and felt (soft) face for versatility and infinite beater angle adjustment. 

Pearl P900 Single Bass Pedal Features
Drive: Single chain
Cam: Aluminum Die-Cast wheel
Footboard: PowerPlate
Beater: Duo Beat
Beater Angle: Beater Angle Cam
Spring Roller: FrictionLess Roller