Warren Kenny of Croftwood Crescent, Ballyfermot, Dublin 10 died on Christmas morning 2015. His blue Kinroad scrambler 'bounced off' a more powerful Kawasaki dirt bike
that was travelling at speeds up to 77kmph at the time.
There were an estimated forty vehicles active in the area of Cherry Orchard where the collision occurred early on Christmas morning, Dublin Coroner's Court heard.
The youth's father, Darren Mulhall had given him €500 for Christmas.
"He bought the small blue bike a week before Christmas, I haven't a clue where he got it.
He was going to sell it the week after," Mr Mulhall said.
On Christmas morning he answered a knock at his door at 7.55am. He was told his son had been in an accident.
"Warren was on the ground. I stayed with him until the ambulance came. I knew by him he was gone," he said.
The accident had happened at the junction of Cherry Orchard Avenue and Cherry Orchard Way minutes previously.
Warren Kenny was travelling east along Cherry Orchard Way when he was thrown from his bike due to the force of the collision.
The other driver, Stephen Mooney had turned the corner from Cherry Orchard Avenue at speed. His bike was raised up in a wheelie in the seconds before the crash. He was travelling between 59kmph and 77kmph in a 50kmph zone, according to Garda Patrick McIlroy. He'd bought his 250cc Kawasaki dirt bike for €1,100 two weeks previously.
"I saw a little blue bike coming from my left side. I didn't see the driver, I didn't see any lights. I got a fright. I woke up on the ground," Mr Mooney said in his deposition, read out in his absence.
Garda McIlroy said neither off-road bike had lights or a horn. Road conditions were wet and visibility was poor, the court heard.
"They collided in the centre of the road just after the junction. The smaller bike bounced straight back off the (Kawasaki) bike, its momentum was instantly changed from one direction to another," Garda McIlroy said. The driver of the larger vehicle was wearing a helmet and sustained minor injuries in the crash. It is not clear if Mr Kenny was wearing a helmet or not. The bigger bike slid 46m before coming to a stop. Public service vehicle inspector Garda David O'Brien said neither vehicle was designed for road use.
"These bikes are made for off-road conditions such as grass, fields and wooded areas.
Their tyres are like studs on a football boot. They should not have been anywhere near a road surface," Garda O'Brien said.
Warren Kenny was rushed to St James's Hospital where he was pronounced dead. The cause of death was multiple injuries due to a road traffic collision. The jury returned a verdict of death by misadventure.