The narrow/wide teeth and composite material keep things running smooth and consistent. Easy to replace as well, I did not need to remove the derailleur or chain from the bike. They are directional, so pay attention to how the original ones are installed. They have little arrows indicating direction too.
Verified purchase: Yes | Condition: New
The product is good and it fits my bike I guess it's the original equipment for my bike but I can't really say anything more except that it works
Verified purchase: Yes | Condition: New
I broke a tooth off of my lower jockey wheel and needed to replace it. These were a perfect fit.
Verified purchase: Yes | Condition: New
Verified purchase: Yes | Condition: New
Exact replacement!
Verified purchase: Yes | Condition: New
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