Publicado Por En julio 26, 2026 I got this crank arm with a bulk lot of vintage bike parts so I don't really know its history. It seems to say KOOKA but the logo doesn't look like the other Kooka cranks I've seen online. It seems to be that same forged aluminum style. If I've made a mistake feel free to message and let me know what brand this is. There are no measurement markings but I measured it at right between 170 and 175 on my tape measure, so I'm assuming it's 172.5mm, maybe 172mm Feel free to message me with any additional questions.