Shimano 20-speed gears with two front chainrings. A smaller version of the Birdy, the Frog, was introduced in the 2000s, then withdrawn due to poor sales, and was back on the market again briefly from 2010. It is now a collector's item. A mark 3 design was released in July 2015. The frame looks the same as a Mk2, but the fold is smaller, the bike is slightly lighter, components have again been strengthened, and the front fork redesigned. The confusing number of models has been reduced to four. Average price Equipment set up differs greatly from country to country. In the US, entry-level bikes cost approximately $1,500 and are equipped with low-mid range Shimano Alivio components. The Birdy monocoque frameset costs approximately US$1,000 without parts. Prices for the Mk 2 rose to the electric model with a 250watt motor in the rear wheel (£3258/US$5068, 2013) In the UK, the entry-level model (World Sport) cost £939 (in 2013) to permit purchase under cycle-to-work schemes. High-end titanium models (rare outside Japan and Taiwan) can cost over US$4,500. Japan, Indonesia, Malaysia, Singapore, Taiwan and China are the biggest markets for these bikes and customised spares are available from companies like Colorplus and Ridea. In Japan, the bike is distributed as the Bianchi Fretta (OEM) and BD-1. The cheapest model in Australia was A$1,400 in 2015 and around A$2000 in 2021. The Birdy is distributed in Europe by Riese und Müller, in Japan by Pacific Cycles Japan, in North America through dealers B-Fold. and in Australia by St.Kilda Cycles (until 2013, then again from 2015). Some distributors make custom modifications to the bicycle including better suspension dampers and wheels. Uses and advantages With its wide range of gearing options, stiff frame and basic suspension, the Birdy is suitable not only for commuting but also for longer distance touring. The combination of smooth but stiff ride, fold, and quirky looks have created a fetish for the Birdy in Japan and other parts of Asia. It also has a large following in the UK, Europe, the US, and Australia. The Birdy's folded size is similar to the 20-inch Dahon folders: larger than a Brompton, but significantly smaller than a Bike Friday (including the Tikit). Advantages: It folds quickly into a small package. Thus, it can be taken into stores, onto trains, and into the office, yet can also be used for cross-country touring or fast