To see my nephew cycling, I thought about how difficult it can be for a child or an adult do the same.
For that reason was made the model A, it has a slightly big design, but it was necessary to have a support to hold on, a guard for fingers and a base where it can support and resting your wrists.
Printing at least 80% full and use filament ABS, Nylon or XT.
The design can be scaled to convenience or you can use the original file and modify it as you need it (Original File)
Ihope this design be helpful for those with limited use of their hands.