Best sprocket for my GS750

[Guest]

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?

[chuck hahn]

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.

[Agemax]

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

[ValorSolo]

Just to make sure, stock is 15 on the front and 41 on the rear?

[chuck hahn]

Yes..15 front and 41 rear are stock.

[ValorSolo]

Thanks for all the help.

Any suggestions on the chain? Brand? etc.

[chuck hahn]

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.

[ValorSolo]

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?

[chuck hahn]

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.

[ValorSolo]

Thanks Chuck, you've been very helpful.
Now time to shop and compare prices.

[Nessism]

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

[ValorSolo]

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.

[boingk]

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

[GSXR7ED]

Great info! Thanks OP for asking the question!

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


Ed

[jeff.saunders]

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.

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...