Birdy (bicycle)
Specifications
The standard Mark 2 weighed 10.8 kg (23.8 lb) (2013). Some riders have reduced the Birdy's weight to 8 kg using racing components, but this was only on the Mark 1 frames. Stock bikes ranged from 10.2 kg (22.5 lb) (for the Birdy Speed with Tune and Shimano Ultegra road components) to over 12 kg (26.5 lb), depending on the setup. The heavier bikes tend to have 3x8 gearing systems, involving an internally geared rear hub and an external derailleur. The Birdy Race (10.9 kg or 24.0 lb) was introduced in 2013 and has dropped handlebars, and Shimano 20-speed gears with two front chainrings.
Birdy (bicycle)-11