Do I need a new sprocket?

[rostam]

Here is a picture of my sprocket. What do I look for as far as wear is concerned?


Judging by the teeth, do I need a new sprocket, or is there more life left? This looks like a Renthal 520 sprocket, judging by the markings.


http://i242.photobucket.com/albums/ff199/alotfian/Bike/sprocket.jpg

 

[bcrunk11]

It looks ok to me for now, but id get one soon. When the teeth start getting a sharp point to them like some of them are now its a good sign of wear. BTW ive seen some alot worse.

 

[mrriverajr]

Ah that looks fine.. Mine was ten times thinner when I changed it.

 

[TN10R]

Somethings photo's can create illusions, but I'd agree that one is one the way out, but I've seen much worse.

The problem with running a worn sprocket is that it accelerates wear on the chain. I expect to use 2 rear aluminum sprockets per chain. A front steel should last the life of the chain. If you plan to swap the chain too, no harm running it for a while. If the chain is still in good shape, I'd swap that one soon.