changing front sprocket only, do I need a new chain? - KawiForums - Kawasaki Motorcycle Forums
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post #1 of 11 (permalink) Old 11-02-2010, 03:19 PM Thread Starter
t.d
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changing front sprocket only, do I need a new chain?

2010 Ninja 250. ~1,000 miles

Yeah pretty much my mechanic is awesome, but I think he tried to upsell me today and pretty much said I'm going to need a new chain because the sprocket won't fit... I doubt that. I need a definite answer guys. THX!
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post #2 of 11 (permalink) Old 11-02-2010, 03:23 PM
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What kind of sprocket? You need to provide more details, son.


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post #3 of 11 (permalink) Old 11-02-2010, 03:36 PM Thread Starter
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What kind of sprocket? You need to provide more details, son.
LOL

JT SPROCKETS SPROCKET C/S EX250 15T- JTF1539.15
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post #4 of 11 (permalink) Old 11-02-2010, 03:39 PM
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If the tooth count is different than stock, then possibly. Some people will also tell you that you need to change the sprockets at the time of changing a chain so the wear patterns match.


(((((20,000 and counting.)))))1994 MX-5 with Suspension2001 Silverado Z-71 with boom boom
Quote:
Originally Posted by hafadai
The word "haters" is becoming increasingly more irritating everyday.

We should word filter hating to "disliking what I like" and haters to "people with opinions".
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post #5 of 11 (permalink) Old 11-02-2010, 04:09 PM
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No. if your changing the front sprocket, your fine. you would only go to a 15t. i have a 15/42 and i never changed my chain.

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now if you'll excuse me i must go fist vex's mother in anger.
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post #6 of 11 (permalink) Old 11-02-2010, 04:13 PM
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i need to learn why there are different widths of chains.....
besides the amount of links to get if getting non-stock sprockets (both front and back)

YUM!!!
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post #7 of 11 (permalink) Old 11-02-2010, 04:14 PM
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Different widths are used for various torque loads applied to the chain, and it's resistance to stretching or breaking from the stress.

520 is usually a good compromise of strength and weight on supersports.


(((((20,000 and counting.)))))1994 MX-5 with Suspension2001 Silverado Z-71 with boom boom
Quote:
Originally Posted by hafadai
The word "haters" is becoming increasingly more irritating everyday.

We should word filter hating to "disliking what I like" and haters to "people with opinions".
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post #8 of 11 (permalink) Old 11-02-2010, 04:23 PM
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The stock front sprocket is a 14 tooth sprocket so going up 1 tooth shouldn't be an issue.

LOL and as was pointed out 520 is a good compromise of strength and rotating mass and whenever people list their mods as a "520 conversion" when they had a 520 width chain and sprockets to begin with I laugh out loud. It's like putting new tires on your car and toting you put a rubber tire conversion kit on your car....

Most any 250cc-750cc or so bike on the road these days take a 520 series chain/sprocket setup. Some of the 600cc+ rides use 525 series and some of the torquier rides run a 530 series.

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post #9 of 11 (permalink) Old 11-02-2010, 04:35 PM Thread Starter
t.d
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If the tooth count is different than stock, then possibly. Some people will also tell you that you need to change the sprockets at the time of changing a chain so the wear patterns match.
lol well thanks for the generic response ;P

cool so I won't be needing a new chain. Thx everyone.
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post #10 of 11 (permalink) Old 11-02-2010, 04:42 PM
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If I knew the answer for your specific application I would have thrown it up. But since I've never owned a 2fiddy I'd rather be vague then give you bad advice.


(((((20,000 and counting.)))))1994 MX-5 with Suspension2001 Silverado Z-71 with boom boom
Quote:
Originally Posted by hafadai
The word "haters" is becoming increasingly more irritating everyday.

We should word filter hating to "disliking what I like" and haters to "people with opinions".
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