This Casarva Yamaha VMAX IRS trike is built to take everything the full power 1200cc V4 engine can put through it. In the drive line is a reverse gearbox too which make sure maneuverability is a cinch . The trike is fitted with our Independent Rear Suspension(IRS) trike conversion kit which is available for most bike either built by us or for DIY conversion. A complete new adjustable rear suspension and braking system make sure it holds the road and gives a comfortable ride.