“Designed and developed in countless sleepless nights, brought to life by skilled hands” LIMITED EDITION. Hand made by A. Arregui. Greyhound has become our top of the line track bike. Its new frame is built with the best combination of columbus alloy steel tubes, chosen by madrid bike tailor Andrés Arregui in collaboration with poloandbike. Andres’ geometry design for greyhound makes it a solid (no stiffer), light, swift and reliable competition track frame that maximizes your pedaling so you can be the fastest dog on track or traffic!