Essex Police issued a public appeal on March 11 about an incident in Mount Road, Theydon Garnon, which took place on Sunday at around 9.45am.
According to the police, two cyclists were injured, one seriously.
The incident involved two mopeds, and the force believes it was a deliberate act.
Last night, a 16-year-old attended a police station where he was arrested on suspicion of grievous bodily harm with intent, grievous bodily harm without intent, causing serious injury by dangerous driving, driving without insurance and failing to stop at the scene of a collision.
He has been released on bail until May 2.
An Essex Police spokesman said: “As part of the investigation, officers are carrying out enquiries into two similar incidents in Coopersale Common and Epping High Street.
“We’re still working to identify the victim in the Epping incident.
“If you have any information, CCTV, dash cam or other footage in relation to this incident, then please get in contact with us.
“Please quote the crime reference number 42/32088/25.
“You can let us know by submitting a report on our website or by using our online Live Chat service, which is available 24 hours-a-day, seven days-a-week.
“Visit www.essex.police.uk/digital101 to find out more about our online reporting services.
“If you would like to make an anonymous report you can contact independent charity @Crimestoppers, by visiting their website or by calling 0800 555 111.”
