CassidyAce
Senior Retro Guru
If you don't like the sight of blood, don't look any further. First the 'Ouch!' then the 'Why?'.
Knuckles: ouch! Shoulder: ouch! Cuts, grazes, blood, bruises . . . Face vs gravel incident: very ouch! :facepalm:
Fortunately, not at high speed - probably only 11-12mph. But why?
As far as I can make out, this happened: on a 3 x 8, I was cruising along in 3 and 6; I went over a few little bumps and the chain jumped from sprocket 6 to jammed between sprocket 8 and the dropout. Derailleur hanger is not bent; limit screws are fine; indexing is fine. As far as I can tell the chain just bounced and jammed the wheel. Fortunately, I wasn't going 30mph and I wasn't on a road. However, I don't want to repeat the experience. Anyone got any ideas why this happened? Rear mech set up as in the photo below:
Knuckles: ouch! Shoulder: ouch! Cuts, grazes, blood, bruises . . . Face vs gravel incident: very ouch! :facepalm:
Fortunately, not at high speed - probably only 11-12mph. But why?
As far as I can make out, this happened: on a 3 x 8, I was cruising along in 3 and 6; I went over a few little bumps and the chain jumped from sprocket 6 to jammed between sprocket 8 and the dropout. Derailleur hanger is not bent; limit screws are fine; indexing is fine. As far as I can tell the chain just bounced and jammed the wheel. Fortunately, I wasn't going 30mph and I wasn't on a road. However, I don't want to repeat the experience. Anyone got any ideas why this happened? Rear mech set up as in the photo below: