Sales manager Ben Gosset said the show was currently "under review".
A decision on the show's future is expected "very soon," said Gosset.
"We will be issuing a statement very shortly."
july's National Adventure Sports Show - NASS06 – has moved into the NEC for 2006.
BMXer Mat Hoffman and skateboarder Tony Hawk - huge names - have confirmed attendance at NASS.
2006 will be the tenth annual running of NASS. The show is for all 'adrenalin' sports but majors on BMX, skate, MTB and MX.
Previously the show was an outdoors summer festival at the Bath & West agricultural showground with a campsite, beer tents and, er, all that entails.
The Bike Show was formerly staged at the NEC but last year moved to the Stoneleigh agricultural showground, losing 3000 visitors in the process.