Chain binding problem

Rusty_Nail

Active Member
Oct 11, 2019
135
37
28
41
My bike is fully built but when you try to crank the pedals the chain feels like it's binding with a notable amount of resistance. I believe the chain is lined up best as possible but I also noticed that when i rotate the pedals the chain partially tries to jump off the rear sprocket. It has a 44t cnc sprocket. Please advise. I can post a pic if needed. If this is in the wrong place someone please move it. Thanks.
 

wrench

Well-Known Member
Aug 20, 2019
348
312
63
So Cal
My bike is fully built but when you try to crank the pedals the chain feels like it's binding with a notable amount of resistance. I believe the chain is lined up best as possible but I also noticed that when i rotate the pedals the chain partially tries to jump off the rear sprocket. It has a 44t cnc sprocket. Please advise. I can post a pic if needed. If this is in the wrong place someone please move it. Thanks.
Chain binding and jumping off sprocket - Causes

1) Rag joint sprocket is not aligned (centered on wheel)
2) Front sprocket oval shaped or warped
3) Front and rear sprockets not aligned properly
5) Chain too tight
6) Chain tensioner installed wrong
7) Rusty chain
 
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