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post #1 of 13 Old 04-02-2011, 1:49 PM Thread Starter
 
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how will changing my gearing effect my milage

00 929 has 15 front 46 rear
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post #2 of 13 Old 04-02-2011, 2:29 PM
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Re: how will changing my gearing effect my milage

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Originally Posted by comokiller View Post
00 929 has 15 front 46 rear

Lowering the gearing just allows the engine to rev higher at the same road speeds.
Those extra revs mean you burn more fuel.

"I won't forget that ride for a while. Maybe you're right. Living fast might be worth the final crash. Maybe that's the secret you fliers know." - Flight of the Intruder
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Re: how will changing my gearing effect my milage

how does the bike read mileage ?? is it mechanical ?? like in the gear box or something?
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post #4 of 13 Old 04-02-2011, 2:37 PM
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Re: how will changing my gearing effect my milage

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Originally Posted by comokiller View Post
how does the bike read mileage ?? is it mechanical ?? like in the gear box or something?


Do you mean the odometer?
It uses a speed sensor to count the revolutions of the output shaft.
Lowering the gearing will make your speedo and odo read higher.

"I won't forget that ride for a while. Maybe you're right. Living fast might be worth the final crash. Maybe that's the secret you fliers know." - Flight of the Intruder
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post #5 of 13 Old 04-02-2011, 4:35 PM
 
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Re: how will changing my gearing effect my milage

you will see poorer gas mileage...
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post #6 of 13 Old 04-02-2011, 6:04 PM
 
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Re: how will changing my gearing effect my milage

With a -1 front sprocket on my 954 when I ride 1 mile it shows 1.1-1.2 on the speedo. I checked it using mile posts on the interstate. So with lower gearing changes it could be off much more. This can add up fast and make your bike look as though it has more miles on it than it actually does. It also makes it hard to determine gas mileage because your trip mileage is higher than it should be inflating your mpg.

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post #7 of 13 Old 04-03-2011, 1:09 AM
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Re: how will changing my gearing effect my milage

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Originally Posted by backdoc View Post
With a -1 front sprocket on my 954 when I ride 1 mile it shows 1.1-1.2 on the speedo. I checked it using mile posts on the interstate. So with lower gearing changes it could be off much more. This can add up fast and make your bike look as though it has more miles on it than it actually does. It also makes it hard to determine gas mileage because your trip mileage is higher than it should be inflating your mpg.

Gearing changes are simple percentages so it's not at all difficult to work out how much difference it makes to the speedo and odo.
If your final ratio is 16/48 or 3.0:1 for example, and you drop one front tooth to 15/48 or 3.2:1 then you have lowered your gearing by 7%. Your speedo and odo will thus read 7% higher.

"I won't forget that ride for a while. Maybe you're right. Living fast might be worth the final crash. Maybe that's the secret you fliers know." - Flight of the Intruder
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post #8 of 13 Old 04-03-2011, 2:46 AM
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Re: how will changing my gearing effect my milage

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Originally Posted by bladeracer View Post
Gearing changes are simple percentages so it's not at all difficult to work out how much difference it makes to the speedo and odo.
If your final ratio is 16/48 or 3.0:1 for example, and you drop one front tooth to 15/48 or 3.2:1 then you have lowered your gearing by 7%. Your speedo and odo will thus read 7% higher.
you're so right! It is pretty simple. I'm speaking strictly from my experience with my RC51 tho. I'm not familiar with factory gearing on the Blades and if it even makes sense to change it. But it does on the RC. Stock is a 530-16/40. The most common swap is 15/42. That makes the rc more spirited in lower gears and lower rpms. Here's a good link that goes in depth.

ROGUE RC51 Common Gearing

I apoligize if this has been posted a hundred times before, kinda brand new to this forum
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Re: how will changing my gearing effect my milage

You won't necessarily see poorer economy, it will depend on your riding style and type of riding. Whilst I haven't changed the gearing on my 929 I have on my previous bike (-1 on the front) and it made no difference to the economy that I could tell and I measured economy on every tank fill.
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Re: how will changing my gearing effect my milage

you should only see about a 10 mi difference per tank with the gearing change.
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post #11 of 13 Old 04-04-2011, 10:36 PM
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Re: how will changing my gearing effect my milage

Quote:
Originally Posted by drewbytes View Post
You won't necessarily see poorer economy, it will depend on your riding style and type of riding. Whilst I haven't changed the gearing on my 929 I have on my previous bike (-1 on the front) and it made no difference to the economy that I could tell and I measured economy on every tank fill.


Did you remember to deduct the extra miles from the trip meter?

"I won't forget that ride for a while. Maybe you're right. Living fast might be worth the final crash. Maybe that's the secret you fliers know." - Flight of the Intruder
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post #12 of 13 Old 04-05-2011, 8:14 AM
 
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Re: how will changing my gearing effect my milage

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Originally Posted by bladeracer View Post
Did you remember to deduct the extra miles from the trip meter?
Yeah. Checked speedo before/after with GPS. Can't remember how much speedo was out now, but from what I could tell it made 2/5 of SFA difference to economy.
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post #13 of 13 Old 04-05-2011, 8:23 AM
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Re: how will changing my gearing effect my milage

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Originally Posted by drewbytes View Post
Yeah. Checked speedo before/after with GPS. Can't remember how much speedo was out now, but from what I could tell it made 2/5 of SFA difference to economy.

It depends on how accurately you're measuring your fuel economy.
But -1 off the front is a pretty minor drop in gearing.

"I won't forget that ride for a while. Maybe you're right. Living fast might be worth the final crash. Maybe that's the secret you fliers know." - Flight of the Intruder
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