2 1/2" to 2 7/8"...well, I might have more that 2" of front sag, I'll have to double check. I might have measured it wrong. I guess your supposed to take an average of this measurement. Overcompress, then release the front with me on it, then completely unload, then sit on it. Average of those two measurements is the actual sag. In my friends defense, I did emphasize that I wanted to retain a plush ride and that my 120lb wife would also be riding this bike. That hasn't happened yet, maybe this weekend.