The urban and extreme sports show was due to take place at Excel London from 22-24 October, coinciding with the autumn half term.
It had hoped to pull in 30,000 visitors through partnerships with key sporting associations and had already signed up The Freestyle Football Federation and Parkour UK.
Organisers have blamed a lack of resources and the need for time to satisfy the needs of the exhibitors for the postponement.
"Despite fantastic support from Excel London, the action sports community and some major brands the event has had to be postponed," show director John Sanders told Event.
"As a small organiser in the current challenging economic conditions we do not have the resources to deliver the event to the standard we and the community wished. However this is not goodbye but rather see you soon."
The decision to reschedule the event has had financial consequences for a number of people.
Tickets had already gone on sale for the October dates and some international exhibitors had booked and paid for flights to attend the event.
"Rescheduling so near to the event is not going to do you any good," commented Meida 10 marketing director Rob Nathan.
"You’re going to have to refund all the people that have bought tickets and all the exhibitors signed up to take part because you’re changing the goalposts. It can’t just be that they’re waiting to make the event even bigger and better next year – there has to be some honesty along the line."
No official date has yet been given, but rumours circulating in the urban sports community suggest the event will be moved to April 2011, with existing purchasers being offered complimentary entry to the rescheduled event as a gesture of goodwill.
The show is run by X in the City Ltd, an independent company, and not by Exposure Communications as previously reported.
To leave a comment register and let us know your thoughts.