Organisers of the Cookstown 100 are concerned for the future of the road race after losing £20,000 at this year's event.
The Cookstown & District Motorcycle club said poor weather and rising insurance costs led to 2019 losses.
"If the trend continues, our heritage will fade away," said a club statement.
Last month it was revealed the Ulster Grand Prix's future is in doubt and the Enniskillen 100 will not take place next season.
Next year's Cookstown 100 is set to take place on 24 and 25 April, and BBC Sport NI understands the race is likely to go ahead despite the financial pressures.
The Cookstown & District Motorcycle Club will hold a meeting on Wednesday to see if a resolution can be found to secure the long-term future of the event.
"With the continuous escalating costs, clubs are finding it much more difficult to raise the necessary funds to organise these events," added the statement.
"The local Cookstown & District MCC is no different. Following this year's event, which had been threatened by bad weather, hence many punters staying at home, resulted in the club losing £20,000.
"Rising insurance costs is the biggest factor and the local club pays approximately £18,000 for the insurance for the two-day event.
"With the loss of the Enniskillen road races, and the future of the Ulster Grand Prix still to be decided, if both these events are non-runners, the remaining clubs - North Armagh, Armoy and Cookstown - will have to bear the brunt. This will mean a possible addition of £8,000.
"Unfortunately, with so many legislations in place now, it is practically impossible to force spectators to pay into road races.
"However, most clubs ask the public to purchase a race programme, or make a donation. Is that too much to ask anyone?
"Race fans, the message is simple; Pay, or lose the tradition of road racing."