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Best sprocket for my GS750

  • Thread starter Thread starter ValorSolo
  • Start date Start date
V

ValorSolo

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I'm in need of a new rear sprocket.
Should I keep it stock or something else?

I'm not into fast riding and certainly not racing.
And I'd gladly sacrifice a bit of power for fuel mileage.

I'd like to hear which sprockets you all use and why?
 
Sunstars are of good reputation. And you never change just one sprocket. Get a new chain too. Worn sprockets and chains just don't mesh and chew themselves up in short order.
 
stick to the standard size if the bike rides as you like it. a bigger sprocket will increase acceleration but give you less top end and a smaller one will give you the opposite.

you should replace both sprockets and the chain at the same time to prevent premature wear from a worn chain
 
Just to make sure, stock is 15 on the front and 41 on the rear?
 
Thanks for all the help.

Any suggestions on the chain? Brand? etc.
 
Remember that the 630 size is being phased out. Get the 530 size now as that's gonna be the only chain size available shortly.
 
See, now that's why I asked. I was looking at 630 chains, not 530. Thanks.

One more question, I see them listed as o-ring or non o-ring, which is preferred?
 
O ring... Still should lube a O ring chain too..contrary to popular mythology. You can still get a 630 if you want..but at some point they are gonna be gone and then youll have no choice but the 530s.
 
Thanks Chuck, you've been very helpful.
Now time to shop and compare prices.
 
If you switch from 630 to 530 you need sprockets with more teeth. Call Z1 Enterprises and they will tell you how to perform the switch (and sell you the parts for a fair price). If you don't care about acceleration, you can go to a taller gear ratio (lower number ratio). Personally, I'd do it. Your bike came with 15/41 sprockets for a 2.733 ratio. With a 530 setup you could go to something like 17/44 (2.588) or maybe 17/43. Something in that range anyway.

Good luck
 
Last edited:
Good to know, thanks. I looked around on Z1 but didn't see any sprockets, but I'll give them a call. They've always been great to deal with.
 
Hi mate, I swear by DID chains. They last well and don't cost the earth. Generally fitted as original equipment on modern Japanese bikes.

I would recommend a chain oiler to get best life as well... I love them and my uncle recently got over 30,000 miles from a chain by using an oiler. He doesn't ride like a saint and straddles an FJR1300!

Check out tutorochainoilers dot com, their auto unit is well priced and doesn't need vacuum or electrical connections as it utilises mechanical actuation with a dwell mechanism; it works simply by the movement of your suspension as you ride. Fill with regular motor oil, works a charm.

Cheers - boingk
 
Great info! Thanks OP for asking the question!

And of course, thanks to the expert opinions of the GSR.


Ed
 
chuck hahn said:
Remember that the 630 size is being phased out. Get the 530 size now as that's gonna be the only chain size available shortly.
Click to expand...

Roll forward 20 years and that may be true.... but currently RK has NO intention of discontinuing their 630 chain. It is harder to find at dealers as no current model uses 630, but places like ours will continue to stock 630.

I would still recommend 530 as it has plenty of upside and no down side.

Slightly lighter - and this is driven weight, so it impacts performance at the rear wheel.
More available - just about every motorcycle shop will have 530 on the shelf, whereas 630 is fairly hard to find.
Available in more colors - even pink if you are inclined...
 
I did say it was being PHASED out in favor of the 530. Like you said, there may still be aew places that will still make it, but they are gonna go away due to the owners just not wanting to "special order" it and be waiting for their bikes back.

Many will see the wisdom in just doing the expense of the conversion once for the convience of having the parts readily available. I will be changing all my bikes out as the cash flow allows...but I have 7 bikes worth to do!!! OUCH!!!!
 
boingk said:
Hi mate, I swear by DID chains. They last well and don't cost the earth. Generally fitted as original equipment on modern Japanese bikes...
Cheers - boingk
Click to expand...

DID, RK and Tsubaki all make very, very good chain. Each is fitted to different brands/models - so they can all be considered OEM chains. There's a number of no-name brands on the market. You have to be very careful with these - some are NOT good quality (some are made in China and don't come with very good tensile strength). Fortunately, only the established 'good' companies make 630 chain these days. Over then next few months, we'll be carrying a new line of 530 chain being launched by JT Sprockets. I had a chance to see this first hand at a couple of dealer events over the past year - very good quality

Don't ever consider buying a non o-ring chain for a street bike - they wear out incredibly quickly.

Round o-ring chain doesn't wear as well as the X-ring or WX-Ring chains. The extra grooves in the o-ring help trap grease inside the rollers and prevent dirt getting inside them. Value for money, we recommend the X-Ring chains on bikes that are ridden day-in and day-out - these chain will generally out perform regular o-ring chain by 50% or more on bikes ridden in all weathers..
 
Fortunately for the original poster, he is at the point that the entire works needs replaced.

He is the perfect guy to get the conversion done and be done with it for the rest of the bikes life. Gonna spend the money one way or another!!!
 
No question, do the conversion. It's so simple on Z-1. Shop by parts for your bike, pic the ratio you want, front, rear, I buy their RK x-ring chain, 6mm spacer, and slap it on the bike.
Trouble free final drive.

When I first got my bike I didn't know any better and got just the 630 chain, non o-ring, no sprockets. Wore out in about 1500km.
 
Chuck, that's correct. I see no reason to waste money on a 630 kit, now.
But I think I will hold off until Jeff gets those new chains. Then get it all from Z1.
 
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