YOU SAID:

i don't like bikes because my mom said that bikes are bad

INTO JAPANESE

私の母は自転車が悪いと言ったので、私は自転車が好きではありません

BACK INTO ENGLISH

My mother said that bicycles are bad, so I don't like bicycles.

INTO JAPANESE

母は自転車が悪いと言っていたので、私は自転車が好きではありません。

BACK INTO ENGLISH

My mother said that bicycles are bad, so I don't like bicycles.