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Go Back   FZ1OA Message Board > FZ1 & Fazer Owners Association > Parts & Accessories > Gen 2 Parts & Accessories

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Old 11-04-2019, 11:25 AM   #1
roundhouse
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1 tooth on rear?

I need a new rear tire, so i thought i might as well change the rear sprocket as well.

My bike is plenty fast for me. I do not wheelie on purpose and want to keep it fairly mild. Would going up one tooth even be noticeable?

If you were going to do it would you just go ahead and change both sprockets and the chain at the same time? I only have 14K on my 2013 and maintain the chain well. Is it worth changing?

Or just leave it all alone and install the rear tire with the stock gear?
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Old 11-04-2019, 11:30 AM   #2
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I was on the same boat as you, went with -1 on the front. I thought it was great. Just changed the front sprocket with the same rear and chain. Didn't have any issues. I don't think you'll be satisfied with +1 in the rear
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Old 11-04-2019, 11:56 AM   #3
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Based on your description and if there aren't any issues with the chain, I don't think I'd bother with a +1 on the rear. Too little effect. I'd say keep up with your good maintenance, inspecting it occasionally for tight spots, worn rear sprocket, or a front cog that begins to hook significantly. Yes, it is perfectly fine to replace the front sprocket if the chain and rear are still in good shape. The small diameter front bears the most load and wear, which is why it is made of hard steel and not aluminum as the rear, but it still wears faster. If all of that remains good, don't plan to change the chain/sprockets until the 10-link measurement is as described here:
http://www.yamahafz1oa.com/forum/showthread.php?t=41882

This stuff gets debated on occasion, so the last thought is, do what makes you feel good.
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Old 11-04-2019, 12:08 PM   #4
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Going up a tooth in the rear would make it easier to wheelie, though admittedly you're not likely to notice the difference.
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Old 11-04-2019, 12:44 PM   #5
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Thanks guys. pretty much answered my question. Appreciate it.
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Old 11-04-2019, 03:14 PM   #6
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FYI I went 6 up on the rear of my Super Duke and though it does make a difference, it's not like a different bike. (Now I can use 6th gear)

With +1 in back you won't notice a difference.
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Old 11-05-2019, 10:13 AM   #7
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Thanks for the response. I rode a super duke and thought it wheelie happy with stock sprockets. I got a +1 vortex on the way anyway. Even if I cannot tell a diff that is OK.

Thought about a 520 conversion but the sprocket is so much cheaper and the chain is in good shape.
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Old 11-05-2019, 04:22 PM   #8
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I went up 2 in the rear and needed a new chain as the stock one brought the rear wheel all the way forward onto the stops. This made the bike turn into corners quicker. I'm not sure if a plus one will need a new chain too, but it will bring the rear wheel forward.
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Old 11-05-2019, 07:19 PM   #9
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Quote:
Originally Posted by Dicko View Post
I went up 2 in the rear and needed a new chain as the stock one brought the rear wheel all the way forward onto the stops. This made the bike turn into corners quicker. I'm not sure if a plus one will need a new chain too, but it will bring the rear wheel forward.
I did not figure this into the equation. If I have to i will buy a new chain no big deal. I will get a vortex front sprocket too.

Still curious about the 520 chain and sprocket conversion. I will post that as well.
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Old 11-06-2019, 04:34 AM   #10
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a 520 conversion will not benefit you at all, it will just decrease the longevity of your chain life.

doing +1 in the rear you will notice almost no difference.
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Old 11-06-2019, 09:16 AM   #11
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I went +1 on the rear. You will notice it a bit, but probably not in a good way. Yea, it is a little quicker, (unnecessary) but it makes the speedometer more inaccurate that it already is, higher revs on the highway, and less gas mileage.

I will be going back to stock next time.
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Old 11-18-2019, 04:20 PM   #12
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Originally Posted by JerseyDiesel View Post
I went +1 on the rear. You will notice it a bit, but probably not in a good way. Yea, it is a little quicker, (unnecessary) but it makes the speedometer more inaccurate that it already is, higher revs on the highway, and less gas mileage.

I will be going back to stock next time.
JD, I had already ordered the 1 tooth up sprocket. I went ahead and put it on. I used GPS to see the diff with my speedo. At 70 on the GPS I was doing 5250 RPM. Which is pretty close to what I was doing before I changed the sprocket. I did put on a new tire. The old one was pretty thin so maybe the slight increase in the tread put me equal.

I did have to move the axle forward a few mm. I cannot tell a difference in handling other than the regular. going from a totally worn out tire to a brand new one.

Thanks for the replies fellas.
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