2 Months Ago, KXTV says (in Game Guys Review: Nyko's Metal Pedal Accessory)  CA - Barry White
The Metal Pedal is a replacement foot pedal for the drum sets of both Rock Band and Guitar Hero World Tour. It even comes with an adapter so that two pedals can be used as a double-bass, but Rock Band 1 gamers will find that their drum set is not ...

And Gizmodo.com says (in Nyko Metal Pedal Review) Also, if you play both Rock Band and Guitar Hero, the cross-compatible hardware plugs into both drumsets and is toggled with a simple switch. I could see where using the same bass drum pedal for both games could be beneficial if you were a real score ...

And Mark Wilson from Gizmodo says (in Nyko Metal Pedal Review [Lightning Review]) The Verdict: I like it more than the standard Rock Band (2) drum pedal, but probably not for the reasons you'd think. The Metal Pedal, for all of its hardcore skeleton styling, doesn't feel sturdier than the latest Rock Band stock pedal. Sure, it's called the Metal Pedal, but 80% or more of it i...

3 Months Ago, Jeff Atwood from Fake Plastic Rock says (in Dual Drum Kick Pedals for Rock Band and Guitar Hero) On the Rock Band side of the fence, I was surprised to discover that Harmonix now has an officially blessed dual drum kick pedal solution too! You can buy an add-on kick pedal for $24.99.

The only place I could find the pedal for sale is at GameStop, as the Universal Rock Band Drum Pedal.