You've never been too concerned about the size of your rack, but now that a fellow pair of mud-slingers want to join your DH road trip, you need the Kuat NV 2 Bike Add On to fit two more big bikes to your NV 2 Bike Rack.

• Note: Only compatible with the two-inch version of the NV-2 Bike Rack
  
• With this add-on, your NV holds up to four 40 pound bikes with 10 inches of space between bikes
  
• Heat-treated aluminum chassis withstands road abuse, folds up for storage, and tilts downward for access to your vehicle's trunk
  
• The front and rear tire ratchets fit 20-29in wheels, so you can be sure your big, bad machines are secure
  
• Extending frame supports reduce movement during bumpy dirty roads to prevent damage
  
• An integrated cable lock keep your prized machines from getting stolen in random truck-stop parking lots