On page 79:, the gmara says that if a donkey was hired for a man, a woman should not ride it. But in the opposite case, if it was hired for a woman, a man may ride on the donkey.
The Poskim give the reason that a woman is more heavy.
But reality shows the opposite. On the average, men weigh more.
Can we give a different reason - the quality of a woman driver?
Dov Abraham
Petach Tikva
Israel
Since women ride side-saddle, they weigh down more on the donkey (requiring the donkey to exert more effort in balancing, moving, etc.).
D. Zupnik
The Chasdei David says like Dov Abraham suggested.
Shmuel Berkovicz