1:57 PM

Chain Slip

What’s wrong with this setup below?
IMG_20110921_121152
 
Answer:  The smallest chainring is on the wrong way!  The teeth have a direction to them, in this case they need to hook the chain forward.  Someone installed this chainring wrong and when a buddy of mine tried to use it it slipped when the hills got gnarly. 
IMG_20110921_121501
 
The slippage also put a nice deep scrape on the frame.
IMG_20110921_121653