Installation checklist - Chonus USA

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Measurement 1: Make sure you have the right type of handlebars.


We tried to design the Chonus Bag to fit most headtubes, but some bike manufacturers thought it was a good idea to create some really big headtubes. 


The best way to determine this is to measure the diameter of your headtube. You can do this with the following steps: 

  1. If you have a soft, flexible tape measure, use that. 

  2. If you don’t have a soft, flexible tape measure, wrap a charging cable or a strap or around the headtube. 

  3. Mark the point on the tape measure, cable, or strap where the length goes all the way around the headtube. 


    1. Use a ruler or measuring tape to measure that distance, which is equivalent to the headtube circumference.

    2. This length should be less than 6 inches.