to Change One's Bicycle

Fine weather arrived mid afternoon and I went for a cycle ride.  At St. Judes I came across Johnny, seen here.   He is 92 and still riding a bicycle.

I recall that he used to ride a gentlemans' model of cycle and he went on to tell me that nowadays he has to use a ladies model and he proudly showed it to me.

I will leave it to you to fill in the punch line...