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new chain

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Posted by: rmrider45---------------------

my son has a kx 85 and i need a new chain and the chain and sprockets are not stock . the chain looks smaller than the one on his 03 suzuki rm 85 (420) i dont have the chain but i have numbers of the sprocket

1423-52
7075-T6

i know the # 52 is how many teeth are on the sprocket
? is i dont know what style chain it should take

not sure if a 420 will work




Posted by: IndyMX---------------------

You should never just buy a chain..

If the chain is worn the sprockets are too.

Just get the stock sizes, you'll be fine.

I believe they are 420 stock.


Posted by: rmrider45---------------------

Quote:
Originally Posted by IndyMX
You should never just buy a chain..

If the chain is worn the sprockets are too.

Just get the stock sizes, you'll be fine.

I believe they are 420 stock.



sprocket and chain are fairly new i think i had the chain to tight

just dont know if a 420 chain will work


Posted by: IndyMX---------------------

I don't know of a smaller chain than a 420.

Seriously though, if the chain was too tight, and it wore out. It wore out the sprockets too.

But it's your kid. Do what you feel is right.


Posted by: rmrider45---------------------

it just looks smaller than my sons rm 85 420 chain


Posted by: JGrossijr---------------------

RM85 standard chain is a 428.
KX85 standard chain is a 420.


Posted by: RM85rider123---------------------

For some reason I think the rm used the 428 chain in the more newer units. Anyways, it should say it in your manual.


Posted by: rmrider45---------------------

correct i bought a 420 tonight and remembered that the rm was a bigger stronger 428

i think kx is the only 85 using a 420



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