hey guys, can explain a weird thing that happened to me this arvo.
I was riding home from uni, going uphill, then I dunno what really happened but it felt like the rear wheel locked up so I went smack into the stem. I had a quick check of the bike as I was standing there, it had changed up a few gears (rear wheel) and nothing was bent. Im pretty sure I didnt shift up.
Anyway the bike was fine to ride home. But what happened?