Even if you are attacked by aliens from outer-space while on your way to thrash the singletrack in Loma, the Thule Sidearm Universal Bike Mount will hold your bike securely to your roof. When the aliens try to use their super-high-powered wind-gun on I-70, they will be no match for the Sidearm.

• SecureHook latches onto the front wheel, while an adjustable wheel strap quickly attaches the back wheel to the reinforced tray
  
• Corrosion-resistant double-walled aluminum tray provides strength and rigidity when traveling on the highway
  
• Accommodates bicycles with disc brakes and thru-axles
  
• Fits bikes with 20 to 29in wheel diameters and bicycles with up to 3in-wide tires