Mine used to weigh about 35 pounds with out kid seat and panniers.

Panniers would add 15 pounds, kid seat about 10 pounds, kid about 40 pounds.

So a grand total of...100 pounds.

Then add add in my 190 pounds and that's about 300.

Nothing was as rewarding as the day on a very slight uphill when a guy on his evo caught me At a stop and said I was going impressively fast. That was a nice feather in the cap,