Rocket Sprockets

I'm still buying more parts for my bike while deployed and though I'm not completely bike illiterate I don't know everything there is to know about them so  I need a little help on buying this pretty simple but important part.
 I am trying to buy a new rear sprocket for my 04 GSX-R 750 and I only want to go up two teeth on the back. When I go to the websites to order it I have no idea what the hell any of the numbers and stuff mean for the different types of chains and sprockets. I want the gold and black one from Supersprox.com but the numbers are confusing and I don't want to buy a part that costs a couple bills and then end up having to send it back and forth.
Any help on this would be appreciated.  

Other then they spelled injection with out the "J" it isn't that hard to find the right stuff on the website??  I'm really not sure why they add the rest of the stuff because it makes no difference in sprocket size.

GSX-R750 Y, K1 INECTION SRAD [2004-2005]
stock is 43 from what they have on their website

You just need to know if your bike has stock size chain or a 520, if you don't know take it to a bike shop but if you waste their time asking your chain size then you should support them by ordering sprockets from them. unless they cant get what you want.

If you are ordering both front/rear sprockets and a chain just go with the 520 conversion, its lighter and the spinning weight will free up some spent energy to spin the heavier sprockets and chains, basically making your bike a little better.  You make it light you make it fast, so take a dump too when you ride.  

Yeah but doing the 520 conversion puts more stress on the chain and the sprocket and then you have to replace them more frequently and constantly adjust them both. It sounds like more trouble than it's worth just to save that little bit of weight when I'm not trying to make a racer out of it. Tahnks for the help and I'll keep posting the progress I make every few weeks.  

the 520 conversion thing is funny.
you'll save what? maybe a pound?
that ain't gonna make you any faster i'm afraid.

I remember a guy telling me he replaced all his nuts/bolts with titanium and it cost a fortune. he wanted to keep weight down so it'd be as fast as possible...the dude weighed about 250 pounds.  

It takes energy to move weight and if you can reduce the weight you free up power and anything free is for me.  when i get back from hollywoods party ill measure up everything and do some math if i get some free time

http://en.wikipedia.org/wiki/Flywheel talks about it nicely


now if you are heavier and think that some titanium nuts saving grams are going to matter, you are in for a rude and expensive mistake.  

Thanks for the help and input guys, I went ahead and bought the sprocket set that came with the stock sizes for each sprocket and the chain. I wanted to change the number of teeth on both but they didn't offer the 45 rear for my bike so I am going to keep the number stock and just buy a larger Vortex rear and a smaller front to play around with later. Saving weight is a good deal but it's not worth a few hundred bucks to save a pound or two. Which reminds me...I have another question about pipes...check out the other post.  

So i was curious about the whole titanium nuts and bolt thing so I decided to look it up. Holy hell they are rediculously expensive. They range from the cheapest being 9.10 all the way to 30 bucks for one damn bolt. That is rediculous and I don't care if you are trying to fly to the moon, the piece is not worth the price on that one. Wanna save some weight on your bike? Ride naked.  

titanium nuts should be a last ditch effort, id buy different wheels first.

If you ever get a chance to peep the M1 from yamaha and see all the titanium stuff on that youll crap, pretty sweet stuff.  but i think they spent more developing the M1 then ducati is worth all together, so they know how to spend.  

lookin to get more low end power, what sprockets should i get???  

i have a 06 gsxr 600, full yosh R-55, k&n, pcIII  

that's too easy, just go +1 or +2 from stock on the rear sprocket. there are plenty of manufacturers out there that make sprockets for every bike out there. just shop around for the best price on the design you want.

I bought the kit on supersprox.com that comes with the front and rear sprocket and a chain for a scratch above 300bucks but if you only want the sprocket you shouldn't pay more than 70-100 dollars anywhere. These websites will help...

Supersprox.com - Sidewindersprockets.com - Motocycle-superstore.com - Kneedraggers.com - Tobefast.com - Starcycle-usa.com - and Superbiketoystore are the ones I shop around on the most.

Hope it helps.  

This may help also...

http://www.superstreetbike.com/hotproducts/0805_sbkp_aftermarket_sprockets/index.html  
Associate Editor
Super Streetbike Magazine

how bout the front?  

dropping the front sprocket one tooth is used for increasing the top speed the bike will do. it's a bit more complicated than i am able to explain, but i do know it also throws your speedometer off wack.

have you tried installing velocity stacks? they cost less than a bolt-on exhaust and weigh barely anything at all and increase your hp by 2-7 between the rpm ranges. not to mention they make a sweet sound when you hit the throttle as the air flows through them.  

believe it or not number of teeth does matter. drive ratio of countershaft has a gear of say 15 teeth. driven sprocket of rear wheel is 46 teeth your divide 46 by 15 and you get 3.067:1   if your back sprocket has 48 teeth your ratio would be 3.200:1 and thats 3.2 turns your sprocket has to 1 turn of the countershaft, instead of 3.067 turns to 1. that means FASTER