Bell suffered a broken back, fractured skull and breaks to his arm and leg.
Enright suffered a broken right femur which required a steel rod, and lost the middle toe on his right foot. He had also lost some sensation in his left hand due to nerve damage.
Neither bike was fitted with headlights or registered for the road.
Judge Philip Connell asked Bell if he had anything to say about the incident.
"It happened," Bell said.
Defence lawyer Amit Malik said his client had suffered physically and financially since the incident. Yet despite this, Bell and Enright remained friends, he said.
Judge Connell said while he accepted the two were riding on a country road they were aware neither bike had lights. "This carelessness was close to stupidity," the judge said.
"I accept he was your friend but that doesn't take away from the fact he was another human being." He noted Bell had two previous convictions for careless use of a vehicle.
He was fined $500, $132 court costs and disqualified from driving for six months.
Hawke's Bay Today understands Enright has also been charged but has yet to appear in court.
