• Beater Shaft Locker
• Beater Angle Adjustment
• Spring Tension Adjustment with Self Lock
• Simple Hoop Clamp Mechanism
• Spring Roller with Built-in Bearings
• Base Frame Tie Rods
• Longer Footboard
• Chain Drive

Frame Structure : 
This Yamaha original design incorporates a sub-frame just below the rocker shaft to deliver greater stability and durability. Drummers will experience smoother, more stable movement particularly in double pedal setups since bearings for both the main and remote beaters are incorporated into the sub-frame.