Brolga Bill's Bike Trail (BBBT)
'Twas Brolga Bill, from Rutherglen, that caught the cycling craze,
He turned away the good old wings that served him many days...

This geoart shows Brolga Bill's bike.
It is designed so you can be like Brolga Bill, and complete the trail by bike.
(and hopefully not come to the sticky end like his mate Mulga Bill)
All the puzzles are about bike riding, and can be solved with an easy online search.
The puzzle
Peaks Challenge Falls Creek is a 235km ride with 4,000+ metres of climbing, set among the backdrop of the beautiful Victorian Alps. To earn your finisher's jacket not only do you have to complete the gruelling loop, but it must be done in under...
Question: How many hours?

You can validate your puzzle solution with certitude.