I built up an On One Inbred 29er recently, and have not ridden it for a while. Took it to work this morning and it was really wierd...you know when you take the front wheel off the bike and spin it really fast while holding the QR, if you lean the wheel it kinda pulls you in the direction of the lean? The gyro effect I think? Well my bike handles like that for some reason...the wheel hardly wants to remain straight while riding, tiny movements of the bars, and the front wheel wants to keep turning rather than come back in line...to the point it was kinda scary at speed, I could hardly keep it in a straight line!?! I checked the stem bolts, and they are not overly tight (with the wheel off the ground you can turn the bars without resistance). I checked the QR skewers were tight and that the wheels were properly seated. I found the that the rear wheel was a bit loose, so I released it, jiggled the wheel around a bit to make sure it was seated and did it up nice and tight, and this helped for a while. It did not cure it, but it helped, but it came back shortly after, so I think it has something to do with the rear wheel, even though it really feels like it is coming from the front?? I did not have time to muck about with it any more as I had to get to work. What do you guys think? I am baffled...it did not do this last time I rode it about a month ago.