''The numbers were up from last year so we're really stoked about that,'' Tokomairiro High School Parent Teacher Association president Catherine Walker said of the fundraiser.
The motorcyclists rode through about 140km of rugged farmland along the coast to Taieri Mouth and back to Milburn.
There were no major injuries, Ms Walker said.
The ride, which began about 9.30am and finished around 4pm, was followed by a barbecue.