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Old 02-17-2012, 07:44 PM
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Default rt180 sprockets

Does anyone what bike i can get sprockets from to convert a 95 rt180 to a 520 chain? It has a 428 chain now.
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Old 02-17-2012, 08:14 PM
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Default ???

Quote:
Originally Posted by monstertruck287 View Post
Does anyone what bike i can get sprockets from to convert a 95 rt180 to a 520 chain? It has a 428 chain now.
Why do you want to go to a 520 chain?

Paw Paw
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Old 02-17-2012, 08:43 PM
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Becuase its bigger and alot more common, and i figured a 520 chain would stretch less and last alot longer.
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Old 02-17-2012, 09:25 PM
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Default Maybe

Maybe what you need is a 428 O-ring chain. It would be much stronger and last longer that the standard 428 chain and then the sprockets would be available as normal.
A 520 conversion will be hard to find.

Paw Paw
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Old 02-18-2012, 03:25 AM
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that one has the old pattern on the countershaft, or at least one we had around here did. the IT 175 had the same one, and it had 520 chain on it. I think that is as far as you have to go to find a front. Sprocket Specialists will work up any pattern you want for a rear sprocket. You can now order direct from them. I am sure yamaha had some mid 70's 250 enduros that probably had the same bolt pattern for the rear sprocket.

There are some other things to consider, one of the first being that your chain guide will need to be modified. to give stock gearing you are going to have a sprocket that is about and inch and a half bigger. it will also be wider. As Paw mentioned, you have the choice of some very high quality Oring chains. For the heck of though it seems like yours has a 6 bolt reah sprocket, give me the diameter of the bolt hole circle and I will let you know if one of the patterns I have on hand from the 70's fits it. Ours has been gone for about 15 years now, and I just dont remember. I know our xt200 wheels and sprockets were interchangeable with it, but that is gone now too.
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