A cyclist who is critically ill in hospital was not wearing a helmet at the time of her fall in Marsden..
A man who rushed to aid the stricken rider said the helmet was hooked around her cycle handlebars.
The freak fall happened on Monday morning at 8.26am when the 18-year-old woman was cycling towards the village down Station Road.
She suffered serious head injuries and was flown to Leeds General Infirmary by the Yorkshire Air Ambulance.
A number of residents and passers-by stopped to help and to raise the alarm within seconds of the woman’s fall.
One eye-witness, who was one of the first on the scene, said the woman was not wearing a helmet but instead had it hooked to the bike’s handle bars.
Resident Simon Lyes said: “I live on Station Road and was just coming outside and putting something in my car when I heard a noise. I looked over and saw another cyclist going up the hill also and we went up and found the girl lying on the ground with her bike next to her.
“The other lady cyclist phoned the ambulance and a third man arrived and he put the girl in the recovery position but she was already on her side.
“She was breathing but unconscious and bleeding.
“We didn’t see any or hear any other vehicles going up or down the hill at the time.
“I did see she was not wearing a helmet and it was hooked on her handlebars.”
Police have confirmed no other vehicles were involved and are keen to retrace her movements.
They have revealed the woman, who has not been named, had travelled from Manchester to Marsden by train shortly before the incident.
Western Road Traffic Policing Unit are investigating the incident and are urging anyone with information to come forward on 101.
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