A 530 conversion question

[Guest]

The Skunk http://www.thegsresources.com/_forum...d.php?t=176156 Needs a new chain.Going to do a 530 for the obvious benefits of that. I know the stock gearing is 15-42.What front and rear 530 sprockets should I get to be close to that? Noticed on Z1's conversion thing that you can do larger 530 sprockets.I can't seem to figure out that Gearing Commander thing.

[Nessism]

I use 17-47.

[azr]

Greg if you email Z1 about it they will send you back a TON of info, well worth the email.

[sschering]

Getting the gear ratio is simple.. Just divide the rear sprocket # of teeth by the front sprocket teeth..

I did 48/17 is a 2.82 ratio

Stock 630 is 42/15 2.8 ratio..

47/17 is a 2.76 ratio.

Chain length is easy to convert. multiply the number of 630 links (96) by 1.2 to get your 530 length.. 115.2.. round up or down..
114 link chain should do the trick. I got a 116 and almost didn't have enough adjuster to tighten it up.

reason for the shorter chain is your sprockets are smaller.. you could use equal size sprockets but 18/50 or 51 sprockets are hard to find.

[SVSooke]

Very interesting,My reason for asking is I came across this eBay seller with all the permutations of the 530 you can think of:

http://www.ebay.ca/itm/530-Conversion-Chain-Sprocket-GS1000-78-79-18-50T-/320558763611?pt=Motorcycles_Parts_Accessories&hash=item4aa2ca8e5b

Including 18-50.Good place to get this from?

[Nessism]

Bikemaster = generic

My opinion is to buy a known high quality brand chain.

[sschering]

You also still need the 6mm spacer for the front sprocket
Part: Chain and Sprocket Kit
Make: Suzuki
Model: GS1000
Year: 1978-1979
O.E.M.Gearing 15-42
Front Sprocket: 18T
Rear Sprocket: 50T
Chain/Links: Bikemaster O Ring Chain 530-106
Note: Requires bushing 24-9325


Z1 has the spacer

http://www.z1enterprises.com/Front-Sprocket-Spacer-Washer--6mm-1886.aspx

Everything you need on one page at Z1

http://www.z1enterprises.com/catalog.aspx?pid=GS1000C-1978-MP1

Looks like it will cost about $39 more with shipping ( $151 for parts $43 to ship) through Z1 but that includes the spacer and a better RK X ring chain.

[SVSooke]

Funny thing happened just after we had this discussion. This showed up http://www.thegsresources.com/_forum...d.php?t=184623 .Now I need a 530 chain on closeout and a rear,shouldn't be to hard.O yes and the $ to buy them

[SVSooke]

So going though my GS750 parts I looked at this sprocket


It's 43T.To worn for a new chain? Got a 48T as well.

[TheCafeKid]

43? You sure it's a 530 sprocket? Typically you'll need more teeth on a 530 than a 630 for gearing close to stock.

I would go with a 17 front btw...that way you can go up or down on the rear without changing chain length. And, I dunno if it was simply a bad sprocket, but the last 530-18 tooth I bought from Z1 wasn't very good in the spec dept...with the spacer they sent, there were no threads left, and without the spacer there was slop side to side on the spline. It wasn't their normal distributer iirc (JT) so I don't blame them. But beware if you do go with an 18.

[SVSooke]

Yes its a 43T 530 sprocket,stock size for a 83 GS750E.Says 43-530 on it,This is the 17T front I got from Katman:

This combination would be taller than stock but my 85 750 ef is running a 15(one up from stock14) and a 40T rear 3 down.I like it.May loss a bit of low end zip but not enogh to worry me.

[Erki]

Just an equation to figure out a 530 conversion. take the number of teeth or links divide by 5 and then multiply by 6

[sschering]

Just an equation to figure out a 530 conversion. take the number of teeth or links divide by 5 and then multiply by 6

Less work.. # of teeth x 1.2


As for the ratio
17/43 would give you a 2.52 ratio.. Stock 15/42 is 2.8

Your 85 750 with 15/40 is 2.66
to get that ratio with your new gear you'll want 17/45

[mrbill5491]

630 to a 530

Has any one done the change over for a 80 GS750E yet? Gonna need a new chain soon and thought I would inquire if someone has done it yet to save some time. Thanks

[daturat100r]

Just done a conversion on my gs750L which uses same frame stamped gs750e ,picked up a new old spares 530 xring chain and 15/43 sprocket kit cheap.did a small amount of calculating and figured I could just squeeze in a 16 tooth front with the 110 link chain and had to turn a 3mm spacer for the front sprocket.Rivet the chain and remove and relube the s/arm bearings while fitting chain.No rubbing problems and no snatch/noise ,just need to fit scott oiler.
Though higher geared than stock 15/41(17" rear wheel) and a little lower than was fitted 15/38 its great not having change gear' just screw on the throttle and go.