If your rack tubing diameter is bigger than 15mm (and up to 21mm), you will need the Oversized Cam-Lock.

• Position: rear rack
  
• Weight: 750 gr / 1.65 lbs
  
• Dimensions: 13 X 13 X 7 in. / 33 X 33 X 18 cm
  
• Folded Dimensions: 13 X 7 X 3 in. / 33 X 18 X 7 cm
  
  
• Zippered convenience pocket for keys, wallet or phone.
  
• Folds for easy carry or storage.
  
• Plenty of reflective front and back.
  
• Made of 1000D US made Cordura®.
  
• Arkel’s exclusive Cam-Lock® mounting system.
  
• Made In Canada.