THE 15th running of the End 2 End Mountain Bike challenge takes place in the Island on Sunday (September 18).
Around 1,700 competitors will be involved in the event which was first run in 1996.
Greenlight TV will once again be filming the challenge.
The event website's gives a clear description to competitors of what the challenge involves.
It states: "The 75km route of the Isle of Man Sleepwell Hotels End to End Challenge incorporates 1,500 metres of climbing with a thrilling mixture of fast fire roads, sweeping moorland paths, country lanes and forest singletrack.
"You'll also experience stunning views and great support from the local spectators whilst you gain a real sense of satisfaction as you make your way from the northern most to southern most points of the Island.
"A full range of rider abilities are represented, a small number of top riders make the trip but most of the field is made up of weekend riders just looking to complete the challenge and enjoy themselves while having a laugh with like minded mountain bikers.
"The course is usually completed within three hours for the leaders and anything up to six hours for the more relaxed riders. The event is a challenge but times are provided and category, as well as spot prizes, are awarded."
