Sprocket upgrade/downgrade?

So I got a new idea for an upgrade on the bike, but I'm clueless as to where to start.

I'm pretty sure that my bike has a stock 520 front sproket.... whatever that means there isn't 520 teeth on that gear, so I'm not sure where to start.

Some of the places I've looked talk about +1 -1 -2 teeth to improve acceleration vs top speed. I'd technically like to improve top speed and lose a little acceleration, though i'm not sure, I could lose some of the top speed I guess, it's interesting both ways...

Thoughts, Ideas? Sites to look at????

 

The 520 sprocket is referring to the chain size. As far as the amount of teeth on the sprocket..... I have done this on another bike I had and I went one tooth size larger on the rear and the bike had much more torque and acceleration. I would search the web about tooth size on bikes to make sure you get the top end like you are wanting. Hope this helps.

 

Stock sprockets on your bike are 16T in the front and 48T in the rear.

Increasing the 16T to a 17T, or changing from a 48 at the rear to say, a 46, will have the effect of decreasing acceleration slightly while increasing the theoretical top speed and slighly lowering your engine RPMs at any given speed.

You don't want to go smaller than the 16T on the front, if you want to "lower" the ratio to gain acceleration, you could go up a tooth or two on the rear. Doing so will also raise your RPMs at any given road speed, and provide slightly brisker acceleration.

Why do you feel the need to "tinker" with the gearing? I've found Yamaha usually comes pretty close on the gearing for all-around use; why not worry about other more important things, like TIRES and such?

If it's time to replace your chain and sprockets, I'd recommend sticking to the stock ratios until you've put some miles on the bike.

 

I have no real reason other then a friend of mine and I were talking about it as he just got a new sproket for his 450 and went down a tooth for the acceleration value.

I hadn't thought about it for mine and was wondering what ideas were out there, what to even look for when I'm looking at said parts. It's not one of those things I "need" to do so it's not on the top of my parts list, but was wanting to look.

I'm pretty happy with both my acceleration and my top speed, though I guess if I really had to choose one to improve, the acceleration could be a little bit more peppy for my liking. But, I say that with the same feeling of It's plenty for how I ride and not something I really NEED to do. I do have more important things on my list luckily, Tires not being one of them, but am looking at fork options/maintenance/upgrades. Looking at re-doing my clutches eventually. Wanna atleast synch my carbs let alone rebuild them one day for the experience and the feeling of known guud. After that I can start playing with it and upgrading.

Almost put a thousand miles on it since I bought it on V-day.... Yes I know I'm lucky to be a Californian!!!

 

Alot of V-twin owners are using 3-4 teath less sprockets to get the RPMs down at highway sppeds, which they really like. It doesn't seem to make a big difference with the low end at take off, but gets you a more relaxed rpm range out on the highway.
That's the main reason I swap between the Seca rear wheel and the Maxim wheel. The Seca rear wheel gives me better gas mielage and less RPMs out on the interstate when I'm running 75-80 mph all day.

 

Do your carbs first! You will be amazed how much better it will run and very likely it will be alot quicker. Frovided you do the clunk test and polish the bores. See the posting on this forum for direction on how to do it. It is time WELL spent.