Audi Develops 50 Mph, Smartphone-Controlled Bicycle

German auto giants Audi have unveiled a concept e-bike with an electronic-assisted 'tail-wind' that helps riders reach speeds of up to 50 miles per hour.
The Wörthersee is so hi-tech it comes equipped with Wi-Fi, allows users lock and unlock it using their smartphones and select a 'wheelie mode' that helps riders perform stunts.

The bike, being dubbed the world's most powerful e-bike, launched in Germany on May 11.
Unlike other electronic bikes, it comes with five modes, ranging from 'Pure', which allows riders to pedal it like any other bike - to 'Pedelec' mode, which is electronically-assisted and allows riders to reach a top speed of 50 miles per hour, with a range of 31 to 44 miles.
The entire bike, made of ultralight carbon fibre, weighs just 46 pounds.

And Audi promises the battery can be recharged from a 230-volt supply in about 2.5 hours, or swapped out with a fully-charged replacement.
Although it was created with efficiency in mind - there are no shortage of fun features.
Besides the 'wheelie mode' there's a touchscreen trip computer that allows riders to record trick sequences and track speed, distance and even connect to Facebook.