My 2016 Zero AM
Full disclosure, I am selling the frame after 3 months. Nothing against the actual frame, well kind of anyway. The problem is with Bird I guess. I used 2.8″ Nobby Nic tyres, as Bird advertise the frame as able to run them. So, I bought the AM. As the TR was not made for that usage.
However, despite the Nobby Nics being well known for not really being a full 2.8″ I had a layer of rubber on my chainstay yoke after a few very mild rides, plus the clearance either side was less than on the 2016 Ragley Mmmbop I had before it (a frame designed for 2.4″ max).
I emailed Bird and sent some pictures. They told me that they hadn’t had that problem and they would investigate that week. I wait a week, no reply. So send an email asking if they found anything out. Again I was told that they didn’t have that problem on their own bikes with those tyres. Which is not very helpful as I clearly did have that problem.
They asked for the setup I was using and I told them. That was a month ago. There has been no reply or anything from Bird.
I don’t doubt the ride of the frames as it is good, reviews tell you that. However my seattube is a very tight fit (as mentioned in a magazine review also) too. But I consider the service, such as it is, that I received to be not so great. Others of course will have better experiences I imagine. I always wanted an Aeris since they came out, but now I’d be wary of ordering again I feel.
As for sizing, I am 5’8″ and have a Medium. Running a 31mm stem. Sizing feels great.