Difference in front sprocket

[E Zurcher]

While replacing my front sprocket I noticed the stock sprocket has an overmold of rubber and the replacement is just steel. My guess is it's for noise reduction. Anyone notice a difference while replacing theirs and afterward.

 

[sixpack577]

Supposedly it's for noise and vibration.
Personally I have never heard or felt any difference, and that is on many, many sprockets and bikes.
I have never heard of anyone else saying they noticed any difference either.
I wouldn't give it a 2nd thought

 

[dadofthree]

I run a short meg. So I have never noticed a difference

 

[cheferman65]

Vibration reduction, I have noticed a difference aft switching.

 

[Amode]

I used a pbi front sprocket with a ek chain and supersprox. Smooth.

 

[Jacobs]

Supposedly it's for noise and vibration.
Personally I have never heard or felt any difference, and that is on many, many sprockets and bikes.
I have never heard of anyone else saying they noticed any difference either.
I wouldn't give it a 2nd thought

Hit the nail on the head

 

[E Zurcher]

I'm good with that. It's the sprocket that came with the Supersprox kit from Pashnit. Have not test rode it yet as I am still putting the bike back together.