Held at the Bendigo Go Kart Club in Maiden Gully, the Motopostie GP saw riders take to a fleet of 110cc postie bikes in an adrenaline charged pursuit of bragging rights as they raced around the winding and challenging race circuit.

Ultimate bragging rights rested with former Team Honda rider, local Greg Moss, who powered his machine around the demanding track in the day's fastest time of 44.192 seconds.

Moss won the six-lap top grade Aviagen moto GP in a time of 4 minutes, 35.468 seconds, while event founder and organiser John Hazeldene proved he was also a more than capable rider, finishing third in a respectable time of 4 minutes, 43.872 seconds.

The second division Bendigo Toyota moto GP was won by Mark Buckell in 5 minutes, 7.937 seconds.

Buckell held off sons Sam and Isaak who crossed the line in third and fourth positions respectively.

The Clee Industries moto 3 was taken out by Jack Cooke, completing his six laps in 5.18.529.

The McCulloughs moto 4 GP was won by Jay Bloss in 5.35.983, with well known accountant and event treasurer Graeme Stewart fifth, almost 25 seconds behind the winner.

Sunday's inclement weather saw much of the day's racing contested on a wet and extremely slippery track, with several riders crashing as they tried to navigate the course and remain upright.

A number were taken to hospital, and organisers were ultimately left with no choice but to cut short the day's racing due to the wet and slippery conditions.

The Motopostie GP was held in support of Bendigo Health's Cancer Centre Wellness Program.

While the final fundraising figure is still being calculated, organisers hope to top the $100,000 mark, an amount that assumes additional importance to Bendigo Health following the decision to abandon plans for this year's Bendigo Health fun run, due to security concerns.

Mr Hazeldene said talks were already underway with other committees interested in holding similar events in their community, based on the success of last weekend's Bendigo event.

"I think the concept is great," he said.

"I had more fun on the postie bike than any other bike I've ever ridden."

Mr Hazeldene thanked his fellow committee members and sponsors for their support, as well as the riders who he said helped make the day such a success.