Sometimes the length of the finished covers will be slightly smaller than the dimensions of the handle bar/bumper bar. That’s because the leather will stretch during lacing and would be too long otherwise.
The lace-up covers will always be a bit thinner than the circumference you gave us – that’s because the covers have to be pulled over the bars very tightly during lacing, so they don’t slip later.
On long, curvy bars, you lace along the inside of the rounding.
Short, straight bars you can also lace on the outside of the bar.
On handle bars with 2 foam parts you start lacing at the middle of the bar.
Our leather covers always go OVER the original foam of the bar!