"4.5 Gearing
The solo gearing is for solo riding. When you add a sidecar your added load strains the clutch,
transmission, shaft drive, chains, and engine.
You will stall easier. Acceleration will not be as brisk. You will spend more time in the lower gears.
Your solution is to increase gearing and increase engine speed for the same road speed.
This is not always easy.
Typically, an increase of 10 to 15 percent is good for larger displacement machines but
small displacement machines require an increase of 20 or 25 percent.
You may reduce the primary sprocket by one or two teeth or increase the secondary
sprocket on the rear wheel by two to five teeth, or some combination of the two."
J'ai mis en gras les passages intéressants.
Bravo Frèrjacq pour les 20 à 25 %.

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, plus que le reste... 

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