The court was told that due to working in the farming industry, Evans would often ride the quad bike with Gracie sat on the rear rack.
Alex Evans, 31, had been riding a single seat quad with Grace Vater sat on the back when the horror unfolded.
I accepted Alex as part of the family, we would spend time with them as a family and it was nice to see Grace happy with Alex and that he was welcomed into the family.
His lawyer Matthew Harbinson said: "The fact is that had he known that there was such an inherent risk involved in allowing his partner, whom he loved, to ride on the back of his quad bike, he would never have allowed that practice to take place.
The court was told Evans had been banned from driving after being convicted of driving while above the limit of controlled drugs, namely cannabis, in April 2023.