"We've made substantial donations to the Cancer Society, CanTeen and 88 Bikes over the last seven years," Sullivan continued.
"This year we'll be doing the same to the Returned Servicemen's Association and to Kidney Health New Zealand ... the more entries, the more we'll be able to give."
The dawn ride opens the event on Anzac Day, Saturday, April 25. Race day is on Sunday the 26th at Waipa mountain bike car park, followed by an after- race party at the society's long-time HQ, the Pig and Whistle historic pub.
The championships always attract a good turnout from Australia.
This year, one of the finest endurance singlespeed riders, Australian Brett Bellchambers, will be at the start line.
He is the current 24 Hour Solo World Singlespeed champion.