Best Gearing for circles?
07-16-2004, 04:18 AM
#21
HoOk
Join Date: Jul 2003
Location: Albuquerque, New Mexico
Age: 42
Posts: 5,430
Re: Best Gearing for circles?
Originally Posted by E-DUB OM
when you go down in the front the counter shaft spins faster and puts a lot more stress on the motor. If you just run all your gearing in the back its a smoother power due to the counter shaft not spinning as fast.
If you dont wanna be going through motors youll be smart and run all the gear in the rear
If you dont wanna be going through motors youll be smart and run all the gear in the rear
Oh well, you live, you learn!
07-16-2004, 04:27 AM
#22
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Join Date: Jan 2004
Location: up north ,WA.
Posts: 1,144
Re: Best Gearing for circles?
this thread is hurting my brain 
i just went down 1 in the front and +4 in the rear and also went to a 520 chizzain courtasy of vortex just the one tooth down angled the chain way down and has almost ate threw the chain guides just runing it on the stands so i agree running all the gear in the back is probly best
i just went down 1 in the front and +4 in the rear and also went to a 520 chizzain courtasy of vortex just the one tooth down angled the chain way down and has almost ate threw the chain guides just runing it on the stands so i agree running all the gear in the back is probly best
07-16-2004, 04:42 AM
#23
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Join Date: Nov 2002
Location: Dallas, Tx
Age: 44
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Re: Best Gearing for circles?
Originally Posted by E-DUB OM
when you go down in the front the counter shaft spins faster and puts a lot more stress on the motor. If you just run all your gearing in the back its a smoother power due to the counter shaft not spinning as fast.
If you dont wanna be going through motors youll be smart and run all the gear in the rear
If you dont wanna be going through motors youll be smart and run all the gear in the rear
For example... A 13 tooth front sprocket cannot make the drive shaft spin any faster than it does with stock gearing in first gear at 3000 RPMs. That is why gearing down makes your bike slower at a given rpm than it does with stock gearing.
The only way engine damage could occur due to the drive shaft being made to spin faster caused by dropping teeth in the front (in my mind) is if you are talking about rear wheel speed.. actual miles per hour.. and that is just because you are reving your **** out at higher rpms with modified gearing than you would be going the same speed with stock gears.. and the same also applies to adding teeth to the rear.
comments? I am not saying I am right and somebody is wrong.. Thats just how I understand it. If I am wrong break it down for me. I have this same arguement going with some friends. I think I have had too much coffee at 4 in the morning.
07-16-2004, 11:58 AM
#24
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Join Date: Jul 2004
Location: Tucson, AZ
Age: 46
Posts: 4
Re: Best Gearing for circles?
Originally Posted by tdatreefrog
btw ,
the reason they don't make front sprockets smaller than a couple teeth down is because it makes the angle at which the chain has to bend and travel around the sprocket too tight and puts stress on the chain.
the reason they don't make front sprockets smaller than a couple teeth down is because it makes the angle at which the chain has to bend and travel around the sprocket too tight and puts stress on the chain.
The exact ratio of how many teeth in front equals how many teeth in back depends on how many you currently have. Just divide them, 45/12 in my case... that's 3.75.
07-16-2004, 12:50 PM
#25
It Ain't Easy Bein Cheesy
Join Date: Apr 2003
Location: Socal
Age: 42
Posts: 2,336
Re: Best Gearing for circles?
Originally Posted by Lb3
I mean no disrespect and dont want to start a big arguement but I dont believe that. When you are cruising at a given rpm in a given gear the drive shaft always spins the same speed no matter what sprocket size you have on there. You cannot change the output of the engine with sprockets... only the rear wheel speed. Now if you are talking about rear wheel speed, then yes, a smaller front will make the drive shaft spin faster at a given rear wheel speed than it would with stock gearing... thats why you lose top end by gearing your **** out... however, increasing the size of the rear has the same effect. Physics guys chime in.
For example... A 13 tooth front sprocket cannot make the drive shaft spin any faster than it does with stock gearing in first gear at 3000 RPMs. That is why gearing down makes your bike slower at a given rpm than it does with stock gearing.
The only way engine damage could occur due to the drive shaft being made to spin faster caused by dropping teeth in the front (in my mind) is if you are talking about rear wheel speed.. actual miles per hour.. and that is just because you are reving your **** out at higher rpms with modified gearing than you would be going the same speed with stock gears.. and the same also applies to adding teeth to the rear.
comments? I am not saying I am right and somebody is wrong.. Thats just how I understand it. If I am wrong break it down for me. I have this same arguement going with some friends. I think I have had too much coffee at 4 in the morning.
For example... A 13 tooth front sprocket cannot make the drive shaft spin any faster than it does with stock gearing in first gear at 3000 RPMs. That is why gearing down makes your bike slower at a given rpm than it does with stock gearing.
The only way engine damage could occur due to the drive shaft being made to spin faster caused by dropping teeth in the front (in my mind) is if you are talking about rear wheel speed.. actual miles per hour.. and that is just because you are reving your **** out at higher rpms with modified gearing than you would be going the same speed with stock gears.. and the same also applies to adding teeth to the rear.
comments? I am not saying I am right and somebody is wrong.. Thats just how I understand it. If I am wrong break it down for me. I have this same arguement going with some friends. I think I have had too much coffee at 4 in the morning.
im with lb3 on this one. thats how i understand it. puttin a smaller front on will speed up the counter shaft, but putting a bigger rear does the same thing. all that should really matter is the ratio. i have a -2 +12right now and my counter spin's slower than when i had stock front /66 rear.
07-16-2004, 11:14 PM
#26
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Join Date: Jul 2003
Location: Minneapolis
Age: 39
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Re: Best Gearing for circles?
Originally Posted by Lb3
I mean no disrespect and dont want to start a big arguement but I dont believe that. When you are cruising at a given rpm in a given gear the drive shaft always spins the same speed no matter what sprocket size you have on there. You cannot change the output of the engine with sprockets... only the rear wheel speed. Now if you are talking about rear wheel speed, then yes, a smaller front will make the drive shaft spin faster at a given rear wheel speed than it would with stock gearing... thats why you lose top end by gearing your **** out... however, increasing the size of the rear has the same effect. Physics guys chime in.
For example... A 13 tooth front sprocket cannot make the drive shaft spin any faster than it does with stock gearing in first gear at 3000 RPMs. That is why gearing down makes your bike slower at a given rpm than it does with stock gearing.
The only way engine damage could occur due to the drive shaft being made to spin faster caused by dropping teeth in the front (in my mind) is if you are talking about rear wheel speed.. actual miles per hour.. and that is just because you are reving your **** out at higher rpms with modified gearing than you would be going the same speed with stock gears.. and the same also applies to adding teeth to the rear.
comments? I am not saying I am right and somebody is wrong.. Thats just how I understand it. If I am wrong break it down for me. I have this same arguement going with some friends. I think I have had too much coffee at 4 in the morning.
For example... A 13 tooth front sprocket cannot make the drive shaft spin any faster than it does with stock gearing in first gear at 3000 RPMs. That is why gearing down makes your bike slower at a given rpm than it does with stock gearing.
The only way engine damage could occur due to the drive shaft being made to spin faster caused by dropping teeth in the front (in my mind) is if you are talking about rear wheel speed.. actual miles per hour.. and that is just because you are reving your **** out at higher rpms with modified gearing than you would be going the same speed with stock gears.. and the same also applies to adding teeth to the rear.
comments? I am not saying I am right and somebody is wrong.. Thats just how I understand it. If I am wrong break it down for me. I have this same arguement going with some friends. I think I have had too much coffee at 4 in the morning.
07-16-2004, 11:36 PM
#28
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Join Date: Jul 2003
Location: Orlando, FL
Age: 43
Posts: 742
Re: Best Gearing for circles?
Originally Posted by Lb3
I mean no disrespect and dont want to start a big arguement but I dont believe that. When you are cruising at a given rpm in a given gear the drive shaft always spins the same speed no matter what sprocket size you have on there. You cannot change the output of the engine with sprockets... only the rear wheel speed. Now if you are talking about rear wheel speed, then yes, a smaller front will make the drive shaft spin faster at a given rear wheel speed than it would with stock gearing... thats why you lose top end by gearing your **** out... however, increasing the size of the rear has the same effect. Physics guys chime in.
For example... A 13 tooth front sprocket cannot make the drive shaft spin any faster than it does with stock gearing in first gear at 3000 RPMs. That is why gearing down makes your bike slower at a given rpm than it does with stock gearing.
The only way engine damage could occur due to the drive shaft being made to spin faster caused by dropping teeth in the front (in my mind) is if you are talking about rear wheel speed.. actual miles per hour.. and that is just because you are reving your **** out at higher rpms with modified gearing than you would be going the same speed with stock gears.. and the same also applies to adding teeth to the rear.
comments? I am not saying I am right and somebody is wrong.. Thats just how I understand it. If I am wrong break it down for me. I have this same arguement going with some friends. I think I have had too much coffee at 4 in the morning.
For example... A 13 tooth front sprocket cannot make the drive shaft spin any faster than it does with stock gearing in first gear at 3000 RPMs. That is why gearing down makes your bike slower at a given rpm than it does with stock gearing.
The only way engine damage could occur due to the drive shaft being made to spin faster caused by dropping teeth in the front (in my mind) is if you are talking about rear wheel speed.. actual miles per hour.. and that is just because you are reving your **** out at higher rpms with modified gearing than you would be going the same speed with stock gears.. and the same also applies to adding teeth to the rear.
comments? I am not saying I am right and somebody is wrong.. Thats just how I understand it. If I am wrong break it down for me. I have this same arguement going with some friends. I think I have had too much coffee at 4 in the morning.
07-17-2004, 02:09 AM
#29
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Join Date: Nov 2002
Location: Dallas, Tx
Age: 44
Posts: 5,133
Re: Best Gearing for circles?
Originally Posted by f4rider
I agree with you until the third paragraph. Small front sprockets do put more stress on the drive shaft.
07-17-2004, 12:41 PM
#30
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Join Date: Jul 2003
Location: Minneapolis
Age: 39
Posts: 1,583
Re: Best Gearing for circles?
Originally Posted by Lb3
SO DO BIG *** REAR SPROCKETS! hehehe.. its all the same.
07-17-2004, 12:56 PM
#31
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Join Date: Jul 2004
Location: Soon 2 B Richardson, TX
Age: 38
Posts: 236
Re: Best Gearing for circles?
Someone put that pic up in ENGLISH ... I have -1 in the front and i guess i'll start putting teeth in the rear now since all this "front sprocket does damage" stuff came up.
07-17-2004, 05:33 PM
#32
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Join Date: Jun 2004
Location: Dirty South
Age: 42
Posts: 740
Re: Best Gearing for circles?
Originally Posted by f4rider
It's not all the same. And it has nothing to do with the speed that the front sprocket is spinning, because that's the same whether it's geared in front or back. It has to do with leverage. Hope this explaines it.
07-19-2004, 01:16 PM
#35
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Join Date: Jun 2004
Location: Dirty South
Age: 42
Posts: 740
Re: Best Gearing for circles?
Originally Posted by Lb3
thanks for the nfo fellas.
07-19-2004, 01:44 PM
#36
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Join Date: Jul 2004
Location: DAYTONA FL
Age: 43
Posts: 78
Re: Best Gearing for circles?
Originally Posted by skitchR6
I've been working on circles but stillhave stock gearing and I'm fed up with the bike stalling halfway through... think 2 down 10 up will be sufficient?
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