[Nexus242]

I keep looking at my rear sproket teef and they look good, haven't looked at the fronts but if they look good do most still replace them with every chain??? Seems like a waste of money at the time if they are still useable.

14.6k miles

Anyone??

 

[Throttlecrazed]

I ususally replace both because the chain is the expensive part... sprockets are cheap by comparision.

Why wear out the expensive part with worn cheap parts?

From the pic the rear looks fine, if your going to keep the rear at least replace the front (its worn more than rear most likely).

 

[Six Chin Skinny]

Nex-- I've done it. Not saying it's right or wrong, just that I've done it and not noticed any undue wear on the 2nd chain. Many posters on this and other moto-boards, who have far more moto experience than I and whose opinions I respect, say differently, to replace the sprockets and chain together. My advice would be to listen to them, as I seem to be in the minority on this topic :'(....

 

[RandyO]

the one time I didn't replace as a set, the new chain only lasted 40% of it's normal life

your sprockets are worn, but maybe not hooking, take your sprocket off, compare it to a new one, the gap between the teeth will be slightly larger, your new chain would quickly stretch to match the sprocket teeth

replace as set, new sprockets and chain wear in together

 

[Randy S]

I always replaced the chain and sprockets as a set, and then I started riding a dual-sport where I changed front sproickets quite often, going up and down teeth, in order to tailor the bike to riding conditions: tight trails, highway, etc. Made no noticeable difference in chain wear as long as sprockets were not significantly worn. Now I no longer change them as a set on that dual sport, since I can't match sprocket and chain anyway with all the front sprocket swaps. The rear sprocket is typically the one that outlasts the other two. The rear is also the more expensive of the two sprockets.

You gotta think in terms of the life of the chain. A sprocket that is significantly worn when you change the chain is going to be toast long before that new chain would normally have worn out. That's going to hurt the lifespan of that new chain. But I typically change my chains at 15K miles, and I have found that I can get two chains to one rear sprocket on that dual sport. If I had a Scottoiler or some other mechanism that I felt would give me longer chain wear, I would probably go back to chainging in sets. Just my opinion. Your milage may vary, so to speak.

 

[Nexus242]

Oh well looks like another $200 out the window. Good thing I'm not getting a room at Biketoberfest next month.

 

[cyclerider105]

Invest a little more and get new sprockets. Then you can change the ratio and get some grunt!

 

[ride_naked]

Oh well looks like another $200 out the window. Good thing I'm not getting a room at Biketoberfest next month.

Just to be on the safe side I replaced the sprockets and chain- after 17k. BTW, when are you going up to Biketoberfest?

 

[Mike]

your new chain would quickly stretch to match the sprocket teeth

replace as set, new sprockets and chain wear in together

excellent point

 

[Mike]

Oh well looks like another $200 out the window.  Good thing I'm not getting a room at Biketoberfest next month.

Wow! I hope not.

I just got a 520 DID Xring chain, JT front sprocket, and a Renthal rear for $146 from my dealer.