Haro Serial Number Info. Search topic: #76 2011-06-02 9:14pm. Bat21 Museum Newbie. And noticed you have similar serial numbers to my bike, ZI L8J8594. It used to be a non front suspension bike, but I've added one. I'm trying to get more information on the bike. Here is the serial number for it and a. The serial number on my haro frame is RVW1K00270. It is a bmx frame, i wanted to try find out which model and year is it please?