520 chain conversion help

[Guest]

OK - Perhaps I'm a fool, but I'm not sure I understand what the difficulty is with using a 520 chain. I've read all the posts on the subject, and it seems the general consensus is that as long as you're staying under 100hp, you should be fine with a standard 520 chain.

So, how do I know what I need to order by way of sprockets and spacers for my 750T, and how do I know if the 520 chain I found in my garage will even work?

Help a poor fool...

[Mark M]

OK - Perhaps I'm a fool, but I'm not sure I understand what the difficulty is with using a 520 chain. I've read all the posts on the subject, and it seems the general consensus is that as long as you're staying under 100hp, you should be fine with a standard 520 chain.

So, how do I know what I need to order by way of sprockets and spacers for my 750T, and how do I know if the 520 chain I found in my garage will even work?

Help a poor fool...

1) There is no problem using a 520 chain. It will wear out faster than a 530 or 630, assuming equivalent quality levels between the sizes, but that is it. The MotoGP guys race on 520 chain and that is far more abusive than your GS should ever be.

2) Can't help you with spacers, but sprockets just need to fit your bolt pattern for the wheel and the spline pattern for the countershaft. I believe Z1 Enterprises has everything dialled for GS chain conversions. Call them and see what they have to say.

3) Unless you are CERTAIN of what you have for that mystery chain, I would buy a new chain of known origin. Doing all this work just to use a chain you found is a waste of time. Spend a few $$ (not really that much, a high quality chain and sprocket set is worth less than $200 and will last years) and make sure you know what you have.

Mark

[UncleMike]

Well, the chain is brand new, in the box, never opened. Parts Unlimited.

Thanks, I'll give them a call.

[Nessism]

520 chains are narrower than 530/630 chains thus your chain/sprockets will wear faster. Regarding using a chain you found in your garage, I suggest you verify whether or not the tensile strength is adequate for use on your bike since not all chains are created equal.

Assuming the chain is strong enough, you just need to come up with some 520 sprockets and an offset spacer for the front sprocket to move it outboard – my understanding is that the stock 630 front sprocket has a shoulder on it that moves the sprocket outboard, and aftermarket sprockets don’t have the shoulder thus the need for a spacer.

FYI, the JT Sprockets website has lots of dimensional information so that may help you locate a sprocket for your bike.

Good luck.

[salty_monk]

I would go with a 530 setup from Z1 & put your brand new chain on Ebay to try to recoup some costs....

Dan

[UncleMike]

I would go with a 530 setup from Z1 & put your brand new chain on Ebay to try to recoup some costs....

Dan

I was kinda thinkin' that myself...

[80GS1000]

I did a 520 conversion on mine. You'll find that it's a royal PITA to find a 520 rear sprocket that has the correct bolt pattern fit the sprocket carrier for your GS750. They don't exist.

The only reason I went to 520 is because I needed its thinness to provide frame clearance with the 05 GSXR 750 rim/cush drive being used. 520 chain doesn't last as long as 530 and most 520 rear sprockets are aluminum, not steel which makes them wear faster.

I'm with Dan here, sell that 520 chain and call Z1 for a 530 chain conversion.