Police are appealing for witnesses following a robbery between 5.30pm and 6pm on Wednesday, September 12, in Rockingham Road, Corby.
Two friends were walking along Rockingham Road with one of their Pit Bikes, when two offenders approached them.
The offenders assaulted the victims – a 17-year-old and an 18-year-old – before grabbing the bike and running off towards Stephenson Way.
The first offender is described as a mixed race man, about 20-years-old, 5ft 9in, short dark hair and wore a blue hoody.
The second offender is described as a white man, about 20-years-old, 6ft, short dark hair and wore a hoodie and dark tracksuit.
Witnesses to this incident, or anyone with information about it, can call Northamptonshire Police on 101 or information can be given anonymously to Crimestoppers on 0800 555111.