The Pi Bike

The Pi Bike is a fixed gear bicycle made in the shape of pi (π) symbol.


The Pi Bike

The Pi Bike is a fully functional bicycle designed by Martijn Koomen and Tadas Maksimovas, handmade from carbon fibre material in the shape of the mathematical symbol, Pi (π).


The Pi Bike was officially revealed in March 2017 to coincide with 'Pi Day', the annual international celebration of Pi, which is observed on March 14th each year. As luck would have it, March 14th is also Albert Einstein's birthday. So, what better way to celebrate the grand reveal than an inaugural ride for the genius himself?


The Making of

Martijn Koomen and Tadas Maksimovas began this project after first seeing the work of Malaysian illustrator Tang Yau Hoong. Martjin and Tadas embraced the complex challenge of taking a simple drawing and rendering it into a fully functioning 3D object.


During the development process, prototypes were produced from simple materials, such as cardboard and plywood. Once the design of the frame was finalised, a resin prototype was cast for testing.


For the finished product, we cast the frame from carbon fibre material, which offers exactly the characteristics needed for a strong, sleek, lightweight bike frame. We fitted wheels, a high-end crank set, and racing handlebars, and the finished bike was ready for its reveal.


The Pi Bike received critical acclaim and has featured on numerous design, tech, and lifestyle blogs, including: Designboom, Design Milk, Curbed, Creapills, Yanko Design, New Atlas, Highsnobiety, Cool Material, Tabi Labo, GQ TurkeyLost At E Minor, The Times and Jornal de Notícias.