I have purchased an Ortlieb Classic Ultimate 6 (small) handlebar pack. The bag has worked well on a Trek road-touring bicycle using an extension of the mounting bracket (purchased separately) to allow more room for my hands between the brake levers and the pack. The pack is stable with light items inside. I also purchased an additional mounting bracket for my Specialized mountain bike, and I can easily switch the pack between bicycles. CamfireCycling’s service has been prompt and satisfactory, and I found the descriptions of various bags to be adequate for making my selections.