Sprocket wear - time to replace?

littledog · January 22nd, 2011, 11:33 AM

I am not really sure how much wear is acceptable on these parts.

I would call the wear on the back "barely perceptible", and on the front "noticeable".

The chain looks perfect, the measure the links test is the same as a new chain, and there are no stiff links.

What do you all think?

scotty · January 22nd, 2011, 11:41 AM

The back doesn't look all that bad, but the front you can tell has some wear. Maybe a time for an upgrade?

Alex · January 22nd, 2011, 04:08 PM

Back looks passable, front looks about done. Once it start appearing "hooked", that's some pretty significant wear. Doesn't immediately make it a safety issue, but if you do put a new chain on in it the chain will wear many times faster compared to what it would do on a new sprocket.

JMcDonald · January 22nd, 2011, 05:11 PM

That's what I was gonna say.

On my first dirtbike, we rode so much that my teeth were rounded off to the point where they were more like "nubs." Needless to say, on dirt it was largely just an annoyance having the chain come off several times during that last trails ride. But, on the street it would obviously be quite dangerous. I'd replace them for sure, and I agree now is indeed a great time for an upgrade

.

January 22nd, 2011, 11:41 AM	#2
scotty ninjette.org certified postwhore Name: Scott Location: Carlise Ohio Join Date: Apr 2010 Motorcycle(s): Yahama v star 650 classic Posts: A lot.	The back doesn't look all that bad, but the front you can tell has some wear. Maybe a time for an upgrade? __________________________________________________

January 22nd, 2011, 04:08 PM	#3
Alex ninjette.org dude Name: 1 guess :-) Location: SF Bay Area Join Date: Jun 2008 Motorcycle(s): '13 Ninja 300 (white, the fastest color!), '13 R1200RT, '14 CRF250L, '12 TT-R125LE Posts: Too much. Blog Entries: 7	Back looks passable, front looks about done. Once it start appearing "hooked", that's some pretty significant wear. Doesn't immediately make it a safety issue, but if you do put a new chain on in it the chain will wear many times faster compared to what it would do on a new sprocket. __________________________________________________ Montgomery Street Motorcycle Club / cal24.com / crf250l.org / ninjette.org ninjette.org Terms of Service Shopping for motorcycle parts or equipment? Come here first. The friendliest Ninja 250R/300/400 forum on the internet! (especially Unregistered)

January 22nd, 2011, 05:11 PM	#4
JMcDonald ninjette.org sage Name: J Location: Oklahoma Join Date: Sep 2010 Motorcycle(s): 2008 250R Posts: 771	That's what I was gonna say. On my first dirtbike, we rode so much that my teeth were rounded off to the point where they were more like "nubs." Needless to say, on dirt it was largely just an annoyance having the chain come off several times during that last trails ride. But, on the street it would obviously be quite dangerous. I'd replace them for sure, and I agree now is indeed a great time for an upgrade . __________________________________________________ Factory Pro Jet Kit, K&N R-0990 Pod Filter, Sportisi VR Black Exhaust, BRT TIS Ignition, White Paint, and 16/41 Sprockets. Soon: Maybe a 37T Rear Sprocket if I get things running like I'd hoped.

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