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
The Penny Farthing, also known as a high wheel, high wheeler or ordinary, was the first machine to be called a "bicycle". It was popular in the 1870s and 1880s, with its large front wheel providing high speeds (owing to it travelling a large distance for every rotation of the legs) and comfort (the large wheel provides greater shock absorption).
It became obsolete in the late 1880s with the development of modern bicycles, which provided similar speed amplification via chain-driven gear trains and comfort through pneumatic tyres, and because of the reduced danger of falling and the reduced height to fall from were marketed in comparison to Penny Farthings.
Question: What were the new bicycles called? (two words, no spaces)
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