Stephen Broughton-Roe, 52, of Hunslet, spent £350 on a second-hand Dutch cargo bike and adapted it so he can take get all three children on board.
He places daughters Edie, two, and seven-year-old Islie on a bench on the bike and puts nine-month-old daughter Remy in a baby seat strapped to a car seat he has installed on the bike.
He adapted it by replacing a second bench with the car seat.
Mr Broughton-Roe said he had seen Dutch parents using cargo bikes to ferry their children around during visits to Amsterdam.
He started shopping for one of the bikes before Remy arrived.
Mr Broughhton-Roe said he and wife Kim, 36, couldn’t afford a car and needed transport.
He places all three children on the bike and cycles just under a mile to St Joseph’s Hunslet Primary School.
He also takes the children for trips out on the bike by the Leeds Liverpool Canal and uses it for shopping trips.
Mr Broughton-Roe, who works in IT at Leeds Becket University, said he was surprised by the reaction from people in Hunslet.
He said: “I thought I was going to be ridiculed riding around on this bike, but people are gobsmacked. They say it’s fantastic and ask me where I got it from.
“The kids absolutely love it because it is such a fun thing to do.” He added: “They are quite heavy bikes so it is good exercise.”