The offenders are described as two black males, one wearing dreadlocks and also a third white male. They are thought to be aged roughly between 16-18 years old.
The white male threatened to use a knife on the victim if he did not hand over his Carrera Vendetta mountain bike.
All three of the offenders have been sighted acting suspicious whilst hanging around the 1km park run marker close to where the burger van parks.
Another sighting saw the same trio heading towards the golf course pushing two bikes.
The victim was unharmed but was left upset and shaken by the ordeal.
If anyone has any information as to who these youths are or has any information whereas to the location of the bike then please get in touch with police on 101. If you are offered a bike of a similar description then please take note that it could be stolen property.
Please note the bike in the main photo is NOT the one which was stolen, although it is of a similar model and design.
Many thanks to the Monton Community Association Facebook page for swiftly alerting local residents.