+1 up front = great!
- Thread starter Pizz
- Start date
SupremeBean
New Member
I was looking into switching sprockets; but, was worried about the loss of acceleration? Did you notice any adverse effects?
How much lower did the RPMs drop at highway speeds?
How much lower did the RPMs drop at highway speeds?
Please tell us where you bought this from and the brand name etc...I've been looking for a rear sproket -2 but cant find one anywhere...any issues with +1 front I heard that there is some modding to get it to fit?Put the +1 sprocket on up front.
Really notice a difference at highway speeds. Not as much revs = not as much vibration.
Another positive is now my speedometer reads perfect.
Doing both of those is a little extreme for this bike. But the acceleration coming out of the corners would be awesome. I've thought about going +2 on the rear just for that. If I get down to 6k on the tach I down shift. This is a bike with an inline 4, not a car or some low rev'ing V-Twin. It's designed to be high rev'ing. You're not even in the meat of the power band until about 7500RPM. The only times I've ever hit 6th gear is on a flat freeway when there are no cars around and I'm thinking about gas milage. Otherwise I don't usually get past 5th on the freeway and rarely over 4th anywhere else, even at speeds of 70+ in the twisties.
I like to stay in the power band and be able to use the throttle to punch out of any situation I'm in. Especially on the freeway. If you're cruising at 4500 or 5000 RPM, you're going to be bogged down if you have to punch it to get out of the way of something.SupremeBean
New Member
Most of the others here seem to recommend Driven sprockets from solomotersports.com.
I didn't notice anything. If you do notice, you will only notice out of first anyway, since once you get the revs up, it won't matter.
We have a winner!
It was a tight fit. This bike has a chain guide up front and this makes it tough, not impossible to get the +1 in. There is some effort required to get it in. Wasn't nearly as easy as my ZX14.
You need to disassemble the shift mechanism to be able to get the sprocket at the right angle to place it on the shaft.
If it's not too much of a bother, can you let us know about what RPM range it takes for you to cruise at 120km/h with the +1 sprocket?
Substitute 120km/h with whatever the average hwy speed is for you in AB - honestly I have only ever stopped there twice
It's a 17 tooth replacement for the stock 16 tooth, so the math says about 6%. So instead of cruising at 6,000 rpm, I'm down to around 5,600. I think this is around 120km/h.
Actually it is solomotoparts.com
Here is the link
Driven 520 Front Sprocket for FZ6R 09-10 - Sprockets - Solo Moto Parts
I find there is a resonance at around 6k, which was right where my cruising speed is. It makes my feet numb. This sprocket fixed my issue.
If the vibration doesn't bother you, then there is no issue to solve.
+1
And on top of that 1st gear is so quick its like as soon as I get to full power its time to shift. This sprocket mod just lengthens each gear right? Or am I looking at this wrong. You can still keep your bike in a high rev range its just that 1st gear will be a little less agressive and 6th will be a slightly lower rpm cruise gear...
You can try this website. It has a bit of a learning curve to it, but once you figure it out, it's a treasure of gearing information:
Gearing Commander: Motorcycle Gear Ratio Calculator for Sprockets RPM Speed Chain
I went on the Gearing Commander website and got the following 6th gear rev information for various sprocket sizes at 120 km/h (74mph):
-1 front, +2 rear = 6917 rpm -max speed at 12000 rpm = 208 Km/h(129mph)
Stock front and rear= 6214 rpm -max speed at 12000 rpm = 232 Km/h(144 mph)
+1 front, stock rear = 5849 rpm -max speed at 12000 rpm = 246 Km/h(153 mph)
-1 front, +2 rear = 6917 rpm -max speed at 12000 rpm = 208 Km/h(129mph)
Stock front and rear= 6214 rpm -max speed at 12000 rpm = 232 Km/h(144 mph)
+1 front, stock rear = 5849 rpm -max speed at 12000 rpm = 246 Km/h(153 mph)
That's a sweet website for gearing. I've been playing around with it. I tried to save the graphs and charts to post here, but it wouldn't let me. Here's some of what I came up with, to break it down to more layman's terms:
RPM @70 MPH in 6th gear with a redline of 11500 and stock size tires:
Stock= 5834, +1 front= 5491, -1 frt/+2 rear= 6494
RPM @65 MPH:
Stock= 5417, +1= 5099, -1/+2= 6030
RPM a@80 MPH:
Stock=6668, +1=6275, -1/+2= 7421
For those of us that commute mostly, the +1 does seem like a good option. There is only about a 6% difference, so like Pizz stated earlier, it's not going to be that noticable at all. I'm not real concerned about the RPM's as much as I'd rather have my speedo correct. And, if it gets me a little more MPG, bonus. I know its designed for high revving and all, but +1 is not much lower than stock and if it fixes the speedometer thing, sweet. Now, its time to shop!
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