Two district councillors have called for legislation to make bicycle helmets mandatory after a cyclist died in Ma On Shan yesterday. The 53-year-old man fell off his bike and hit his head after colliding with another cyclist in an underpass. Police believe the man, a construction worker, could have survived the fall if he had been wearing a helmet. 'The back of his head smacked onto the ground when he fell off his bicycle in the collision. That was probably what killed him,' a police officer said. The man had been cycling to the beach at Wu Kai Sha from his home in Heng On Estate when the accident happened at about 8am. He collided with another cyclist who was riding downhill as he was coming out of an underpass going uphill on a cycle track at the junction of Ma On Shan Road and Hang Hong Street, police said. The other cyclist was a 14-year-old student on his way to school. Both fell to the ground in the collision. The man went into a coma after he hit his head on the ground. He was taken to the Prince of Wales Hospital, where he was declared dead shortly after 9am. He is survived by his wife, son and daughter. The student, whose head and limbs were injured in the accident, is in stable condition in the same hospital. Neither cyclist was wearing a helmet. Acting chief inspector Denis Li Man-kit, of New Territories South traffic unit, said police were investigating whether the two cyclists had been riding too fast or crossed over to the wrong side of the path. He appealed for witnesses to contact police on 3661 1348 or 3661 1300. Sha Tin district councillors Cheng Cho-kwong and Wong Mo-tai said helmets should be compulsory for cyclists. 'Motorcyclists are required to wear helmets under the law. I think cyclists also need to wear them for protection and to reduce the chance of head injuries,' Cheng said. He said he would raise the issue at Sha Tin District Council's traffic and transport committee meeting on Tuesday. Wong agreed that legislation was needed to force cyclists to wear helmets: 'At present, cyclists are only advised to wear helmets. Now, we should make it compulsory.' She said she would visit the accident scene this afternoon with other Sha Tin district councillors. They will meet Transport Department and police officers to discuss whether safety measures are needed there. Eight people died and 1,447 people were injured in 1,396 bicycle-related accidents in the first nine months of this year, according to police figures. Last year, 10 people died and 1,858 people were injured in 1,793 accidents. There are about 170 kilometres of cycle tracks in the New Territories, and a further 70 kilometres are being added.