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Found a 520 O-ring chain in my garage!

  • Thread starter Thread starter UncleMike
  • Start date Start date
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UncleMike

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Been cleaning out my garage since selling some bikes/parts, and I came across an LM 520 Pro O-ring chain from Parts Unlimited in my garage. Is this thing total crap?

If not, what will I need to fit it to the T?

Thanks,
/Mike
 
I am not sure that a 520 would work. I think everyone is running 530.

The difference is that the 520 is only 1/4" wide, the 530 is 3/8". That allows thicker, stronger sprockets.

While on the topic of chain sizes, did you know that the "5" in the 520 or 530 means that it's 5/8" from pin to pin?
Yep, and the "6" in the 630 means that it's 6/8" (or 3/4") from pin to pin.
The middle number, the "2" in 520 or the "3" in 530 is the width in 1/8ths of an inch, so a 520 is 2/8" (1/4") wide, a 530 is 3/8" wide.

Now all those chain numbers might make a little more sense. 8-[

.
 
Yeah, A lot of the original chains were 630. This is generally less available now for most bikes. It's heavier and therefore limits acceleration

People generally switch to 530.


My ninja 250 runs 520.
 
I think our little GS300L runs a 520 O-Ring .. if you have no use for it, pm me.
 
Kinda funny.. I had the same thing happen to me about a month ago.. Then remembered I had ordered chain and sprockets about 2 years ago, and then realized I had ordered 530 sprockets and 520 chain. At the time I ordered the correct chain for the sprockets, and was debating selling the chain on ebay.

I think now though, that I'm going to order up some 520 sprockets to put the chain to use on the 650. Don't have the money to buy new chain and sprockets (which I'm due for), so I'm figuring the sprockets to match this chain should hold me over for now. Plan on keeping a fairly close eye, but then also realize that modern bikes put out a lot more power than this old beast, and if modern 250's are running around with it it shouldn't hurt too much on my bike.

*steps back and waits for the experts to say why this is a bad idea*

Amos
 
Now I will agree with Steve in saying that MOST of the ppls round these here parts swap to 530. 520 is generally used on even more modern bikes. It MAY be possible to do a 520 swap on these, but im not sure. I think that you would definately need some spacers to avoid clearance issues. With is being even more narrow than a 530, and some of these bikes needed a spacer for a 530 conversion, i think you are bound to run into rubbing issues with a 520. Never tried it, so i may be wrong.
 
TheCafeKid said:
Now I will agree with Steve in saying that MOST of the ppls round these here parts swap to 530. 520 is generally used on even more modern bikes. It MAY be possible to do a 520 swap on these, but im not sure. I think that you would definately need some spacers to avoid clearance issues. With is being even more narrow than a 530, and some of these bikes needed a spacer for a 530 conversion, i think you are bound to run into rubbing issues with a 520. Never tried it, so i may be wrong.
Click to expand...


Correct me if I'm wrong.. but in my thinking the 530/520 shouldn't need a spacer since technically the sprocket rests against the same location with both, and since the 520 is just a bit narrorwer, just won't get as close to the cases.

However, I may be wrong in that assumption, and hope someone can come and clarify shortly, as I haven't ordered the sprockets yet.

Though, I do have some extra cash coming now (just found out about it), So, maybe I'll just order the sprockets and report back.

Amos
 
Well i DIDNT need the 530 spacer on the 77 750 i did a conversion on. But I have read SOME of the GS, and dont know which for sure do. Some of the sites that sell the conversion kits suggest you need a spacer as well. To be sure, mayhaps you could call Z1 and ask the guys. My kit, which i bought off a member here, had the spacer with it, but i didnt use it.
 
630

630

I'd be curious to know how many people have switched to 530. My guess is that most bikes that started with a 630 chain still have a 630....just my guess.:-s
 
I switched. Mike Riddle is running a 520 on his 1100E, but he bought that off Jethro with the 520 kit already installed i do believe. Letsee..i think 8Track switched to 530, Dardoonk has, andrewclaycomb has...
 
UncleMike said:
Been cleaning out my garage since selling some bikes/parts, and I came across an LM 520 Pro O-ring chain from Parts Unlimited in my garage. Is this thing total crap?

If not, what will I need to fit it to the T?

Thanks,
/Mike
Click to expand...

You will need a set of 520 sprockets and spacers as required to get it to fit properly.

For the worry warts who are concerned about strength, many current sport bikes get 520 conversions (my GSXR1K included) and run fine with that size. MotoGP bikes also run with 520 chain and do not break them. Your GS will be fine. A 520 may wear faster than a 530, due to the smaller roller width, but it will not be too weak.

Mark
 
TheCafeKid said:
I switched. Mike Riddle is running a 520 on his 1100E, but he bought that off Jethro with the 520 kit already installed i do believe. Letsee..i think 8Track switched to 530, Dardoonk has, andrewclaycomb has...
Click to expand...

Well, that's 5!:-D
 
That *I* know of off the top of my head. Im sure many of the restore-ers/upgraders have swapped.
 
6.
I have done a 530 conversion.
No spacers needed here either.
Cheers
 
Last edited:
The need for a spacer when doing a chain conversion is because some of the front sprockets Suzuki used have an offset flange on one side, which are not present on regular aftermarket sprockets. Chain width should not be a consideration - particularly when going from 630 to 530 since the chain is the same width.
 
I would estimate 30%-40% or more of our customers replacing worn out 630 chain switch to 530 chain. For most bikes it's breeze. There are a few bikes (non-Suzuki) that the 530 sprockets are not available.

For most bikes, there really is no reason not to convert from 630 to 530. There are really only pros in making the switch. Only the guys doing full restorations need to stay with 630 chain.

530 chain is cheaper, lighter, better wearing, more available, and available in different colors...
 
Nope .. mine is a 530 .. sorry if I mistyped ...

TheCafeKid said:
I switched. Mike Riddle is running a 520 on his 1100E, but he bought that off Jethro with the 520 kit already installed i do believe. Letsee..i think 8Track switched to 530, Dardoonk has, andrewclaycomb has...
Click to expand...
 
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