I am new to the forum and am a Design student trying to modify a simple bike handle bars for my dad for his birthday as he is a keen cyclist but unfortunately has very bad arthritis in his hands. It would be a great help for me if you could answer a few of my questions, it would be greatly appreciated.
1. Which handle bars are the comfiest to use?
2. How would you suggest I modify the use of break and gears?
Thank you! (If you want to include any other information that would be very helpful!)