Changed Final Drive Gearing 2013

[CIP57_imp]

I always felt the gearing had short legs on the 2013. I would often start out in 2nd on flat ground. Its almost is if they set it up for the Japanese market ( city traffic )

I changed to a 19 front and 38 back about 9% difference in torque and MPH's. With the longer gears it feels just about right taking off from a traffic light, there's less engine braking and a smoother transition in the top 3 gears. They only place where you notice the decrease in torque is when you lug the bike under 2500RPM's and roll ons from 60-80 in 5th are a bit slower .3

I though the bike would run faster times which it does, 0-60 is .2 faster and 0-100 is .3 faster. Very small gains but its positive not negative.

Note: I had a bad rear sprocket it was out of round 1/16th everything cleared up with the change. My chain is running true now.

Cheers

[url=http://s1034.photobucket.com/user/cipolla57/media/photo_zpsdae3fb95.jpg.html]

[DGShannon_imp]

I always felt the gearing had short legs on the 2013. I would often start out in 2nd on flat ground. Its almost is if they set it up for the Japanese market ( city traffic )

I changed to a 19 front and 38 back about 9% difference in torque and MPH's. With the longer gears it feels just about right taking off from a traffic light, there's less engine braking and a smoother transition in the top 3 gears. They only place where you notice the decrease in torque is when you lug the bike under 2500RPM's and roll ons from 60-80 in 5th are a bit slower .3

I though the bike would run faster times which it does, 0-60 is .2 faster and 0-100 is .3 faster. Very small gains but its positive not negative.

Note: I had a bad rear sprocket it was out of round 1/16th everything cleared up with the change. My chain is running true now.

Cheers

[url=http://s1034.photobucket.com/user/cipolla57/media/photo_zpsdae3fb95.jpg.html]

I have to agree with you! Glad that others, like yourself, have already done the change, and can report it's success. I can see this mod in my future.

I know you have mentioned the details elsewhere, but you might want to restate the details (part number, maker, etc.) on the two sprockets!

- Darrell

[CIP57_imp]

I always felt the gearing had short legs on the 2013. I would often start out in 2nd on flat ground. Its almost is if they set it up for the Japanese market ( city traffic )

I changed to a 19 front and 38 back about 9% difference in torque and MPH's. With the longer gears it feels just about right taking off from a traffic light, there's less engine braking and a smoother transition in the top 3 gears. They only place where you notice the decrease in torque is when you lug the bike under 2500RPM's and roll ons from 60-80 in 5th are a bit slower .3

I though the bike would run faster times which it does, 0-60 is .2 faster and 0-100 is .3 faster. Very small gains but its positive not negative.

Note: I had a bad rear sprocket it was out of round 1/16th everything cleared up with the change. My chain is running true now.

Cheers

I have to agree with you! Glad that others, like yourself, have already done the change, and can report it's success. I can see this mod in my future.

I know you have mentioned the details elsewhere, but you might want to restate the details (part number, maker, etc.) on the two sprockets!

- Darrell

I have to agree with you! Glad that others, like yourself, have already done the change, and can report it's success. I can see this mod in my future.

I know you have mentioned the details elsewhere, but you might want to restate the details (part number, maker, etc.) on the two sprockets!

- Darrell
Here you go:
Front:

[url=http://shop.pbisprockets.com/searchquick-submit.sc?keywords=377]http://shop.pbisprockets.com/searchquick-submit.sc?keywords=377

Rear:

http://shop.pbisprockets.com/product.sc?productId=153

[CB4ME_imp]

I always felt the gearing had short legs on the 2013. I would often start out in 2nd on flat ground. Its almost is if they set it up for the Japanese market ( city traffic )

I changed to a 19 front and 38 back about 9% difference in torque and MPH's. With the longer gears it feels just about right taking off from a traffic light, there's less engine braking and a smoother transition in the top 3 gears. They only place where you notice the decrease in torque is when you lug the bike under 2500RPM's and roll ons from 60-80 in 5th are a bit slower .3

I though the bike would run faster times which it does, 0-60 is .2 faster and 0-100 is .3 faster. Very small gains but its positive not negative.

Note: I had a bad rear sprocket it was out of round 1/16th everything cleared up with the change. My chain is running true now.

Cheers

[url=http://s1034.photobucket.com/user/cipolla57/media/photo_zpsdae3fb95.jpg.html]

Same change on my bike and I couldn't agree more!

[Dakota_imp]

I always felt the gearing had short legs on the 2013. I would often start out in 2nd on flat ground. Its almost is if they set it up for the Japanese market ( city traffic )

I changed to a 19 front and 38 back about 9% difference in torque and MPH's. With the longer gears it feels just about right taking off from a traffic light, there's less engine braking and a smoother transition in the top 3 gears. They only place where you notice the decrease in torque is when you lug the bike under 2500RPM's and roll ons from 60-80 in 5th are a bit slower .3

I though the bike would run faster times which it does, 0-60 is .2 faster and 0-100 is .3 faster. Very small gains but its positive not negative.

Note: I had a bad rear sprocket it was out of round 1/16th everything cleared up with the change. My chain is running true now.

Cheers

[url=http://s1034.photobucket.com/user/cipolla57/media/photo_zpsdae3fb95.jpg.html]

CIP, I am a bit surprised that taller gearing resulted in quicker acceleration as seems counter to what is done in the automotive world. Is because there is less shifting and more time with power to the ground?

[CIP57_imp]

[/quote]

CIP, I am a bit surprised that taller gearing resulted in quicker acceleration as seems counter to what is done in the automotive world. Is because there is less shifting and more time with power to the ground?
[/quote]

A member here posted a 17 tooth front sprocket run, you will spin up the tach faster but it slows down forward motion.

http://cb1100forum.com/forum/showthread....ket+change

50-100 17 tooth 6.46 Shift point 42/68/90
Completely Stock 5.96 50/83
Yoshi Stock Gear 5.75 50/83
Gear change 19-38 5.61 60/95

This is a fair comparison since all runs are in the power-band and have two shift points. You can see how lower gears produce slower times.

Hope this is helpful.

[AzBob_imp]

CIP, I am a bit surprised that taller gearing resulted in quicker acceleration as seems counter to what is done in the automotive world. Is because there is less shifting and more time with power to the ground?
[/quote]

A member here posted a 17 tooth front sprocket run, you will spin up the tach faster but it slows down forward motion.

http://cb1100forum.com/forum/showthread....ket+change

50-100 17 tooth 6.46 Shift point 42/68/90
Completely Stock 5.96 50/83
Yoshi Stock Gear 5.75 50/83
Gear change 19-38 5.61 60/95

This is a fair comparison since all runs are in the power-band and have two shift points. You can see how lower gears produce slower times.

Hope this is helpful.
[/quote]
A member here posted a 17 tooth front sprocket run, you will spin up the tach faster but it slows down forward motion.

http://cb1100forum.com/forum/showthread....ket+change

50-100 17 tooth 6.46 Shift point 42/68/90
Completely Stock 5.96 50/83
Yoshi Stock Gear 5.75 50/83
Gear change 19-38 5.61 60/95

This is a fair comparison since all runs are in the power-band and have two shift points. You can see how lower gears produce slower times.
The runs aren't comparable for a couple of reasons: 1. They weren't performed in the same weather (atmospheric density matters a ton, along with ambient air temperature) 2. They weren't performed on the same track/in the same area (inclination of the land and atmospheric density based on altitude) 3. They weren't performed by the same rider (variances in skill). 4. They weren't instrumented by a calibrated measuring device.

Higher gear ratios (lower numerically) make a vehicle accelerate SLOWER and lower gear ratios (higher numerically) make a vehicle accelerate FASTER. It's physics and there's no disputing it. I have raced cars for well over 20 years and this is the indisputable truth. You are mistaken in your assertion.

[CIP57_imp]

CIP, I am a bit surprised that taller gearing resulted in quicker acceleration as seems counter to what is done in the automotive world. Is because there is less shifting and more time with power to the ground?

A member here posted a 17 tooth front sprocket run, you will spin up the tach faster but it slows down forward motion.

http://cb1100forum.com/forum/showthread....ket+change

50-100 17 tooth 6.46 Shift point 42/68/90
Completely Stock 5.96 50/83
Yoshi Stock Gear 5.75 50/83
Gear change 19-38 5.61 60/95

This is a fair comparison since all runs are in the power-band and have two shift points. You can see how lower gears produce slower times.

Hope this is helpful.
[/quote]
A member here posted a 17 tooth front sprocket run, you will spin up the tach faster but it slows down forward motion.

http://cb1100forum.com/forum/showthread....ket+change

50-100 17 tooth 6.46 Shift point 42/68/90
Completely Stock 5.96 50/83
Yoshi Stock Gear 5.75 50/83
Gear change 19-38 5.61 60/95

This is a fair comparison since all runs are in the power-band and have two shift points. You can see how lower gears produce slower times.
The runs aren't comparable for a couple of reasons: 1. They weren't performed in the same weather (atmospheric density matters a ton, along with ambient air temperature) 2. They weren't performed on the same track/in the same area (inclination of the land and atmospheric density based on altitude) 3. They weren't performed by the same rider (variances in skill). 4. They weren't instrumented by a calibrated measuring device.

Higher gear ratios (lower numerically) make a vehicle accelerate SLOWER and lower gear ratios (higher numerically) make a vehicle accelerate FASTER. It's physics and there's no disputing it. I have raced cars for well over 20 years and this is the indisputable truth. You are mistaken in your assertion.
[/quote]
A member here posted a 17 tooth front sprocket run, you will spin up the tach faster but it slows down forward motion.

http://cb1100forum.com/forum/showthread....ket+change

50-100 17 tooth 6.46 Shift point 42/68/90
Completely Stock 5.96 50/83
Yoshi Stock Gear 5.75 50/83
Gear change 19-38 5.61 60/95

This is a fair comparison since all runs are in the power-band and have two shift points. You can see how lower gears produce slower times.
The runs aren't comparable for a couple of reasons: 1. They weren't performed in the same weather (atmospheric density matters a ton, along with ambient air temperature) 2. They weren't performed on the same track/in the same area (inclination of the land and atmospheric density based on altitude) 3. They weren't performed by the same rider (variances in skill). 4. They weren't instrumented by a calibrated measuring device.

Higher gear ratios (lower numerically) make a vehicle accelerate SLOWER and lower gear ratios (higher numerically) make a vehicle accelerate FASTER. It's physics and there's no disputing it. I have raced cars for well over 20 years and this is the indisputable truth. You are mistaken in your assertion.
Sorry Bob, but i disagree, put a set of low tractor gears in the CB and tell me what you run. The only thing you increase with lower gears is torque that's it, it may jump out of the hole, pull the wheels off the ground. There are equations used with different rears back in the day higher rears where not faster all the time, there is much more that goes into setting up for time.

BTW my runs where in the same area, temps may have varied a bit but all documented rather well.
Cheers

[AzBob_imp]

CIP, I am a bit surprised that taller gearing resulted in quicker acceleration as seems counter to what is done in the automotive world. Is because there is less shifting and more time with power to the ground?

A member here posted a 17 tooth front sprocket run, you will spin up the tach faster but it slows down forward motion.

http://cb1100forum.com/forum/showthread....ket+change

50-100 17 tooth 6.46 Shift point 42/68/90
Completely Stock 5.96 50/83
Yoshi Stock Gear 5.75 50/83
Gear change 19-38 5.61 60/95

This is a fair comparison since all runs are in the power-band and have two shift points. You can see how lower gears produce slower times.

Hope this is helpful.

A member here posted a 17 tooth front sprocket run, you will spin up the tach faster but it slows down forward motion.

http://cb1100forum.com/forum/showthread....ket+change

50-100 17 tooth 6.46 Shift point 42/68/90
Completely Stock 5.96 50/83
Yoshi Stock Gear 5.75 50/83
Gear change 19-38 5.61 60/95

This is a fair comparison since all runs are in the power-band and have two shift points. You can see how lower gears produce slower times.
The runs aren't comparable for a couple of reasons: 1. They weren't performed in the same weather (atmospheric density matters a ton, along with ambient air temperature) 2. They weren't performed on the same track/in the same area (inclination of the land and atmospheric density based on altitude) 3. They weren't performed by the same rider (variances in skill). 4. They weren't instrumented by a calibrated measuring device.

Higher gear ratios (lower numerically) make a vehicle accelerate SLOWER and lower gear ratios (higher numerically) make a vehicle accelerate FASTER. It's physics and there's no disputing it. I have raced cars for well over 20 years and this is the indisputable truth. You are mistaken in your assertion.
[/quote]
A member here posted a 17 tooth front sprocket run, you will spin up the tach faster but it slows down forward motion.

http://cb1100forum.com/forum/showthread....ket+change

50-100 17 tooth 6.46 Shift point 42/68/90
Completely Stock 5.96 50/83
Yoshi Stock Gear 5.75 50/83
Gear change 19-38 5.61 60/95

This is a fair comparison since all runs are in the power-band and have two shift points. You can see how lower gears produce slower times.
The runs aren't comparable for a couple of reasons: 1. They weren't performed in the same weather (atmospheric density matters a ton, along with ambient air temperature) 2. They weren't performed on the same track/in the same area (inclination of the land and atmospheric density based on altitude) 3. They weren't performed by the same rider (variances in skill). 4. They weren't instrumented by a calibrated measuring device.

Higher gear ratios (lower numerically) make a vehicle accelerate SLOWER and lower gear ratios (higher numerically) make a vehicle accelerate FASTER. It's physics and there's no disputing it. I have raced cars for well over 20 years and this is the indisputable truth. You are mistaken in your assertion.
Sorry Bob, but i disagree, put a set of low tractor gears in the CB and tell me what you run. The only thing you increase with lower gears is torque that's it, it may jump out of the hole, pull the wheels off the ground. There are equations used with different rears back in the day higher rears where not faster all the time, there is much more that goes into setting up for time.

BTW my runs where in the same area, temps may have varied a bit but all documented rather well.
Cheers
[/quote]
You may disagree if you like but you're still wrong. Again, it's physics, there's really no room for argument. Saying all it does is increase the torque is like saying all spinach does is make Popeye stronger. With increased torque, more work can be done, and the vehicle accelerates faster because it moves the weight easier and therefore more quickly. This is the reason that vehicles powered by electric motors accelerate so quickly -- 100% of the motor's torque is available at all times and you don't have to wait for it to get to a certain RPM before the motor is outputting maximum torque.

Of course there are other considerations when _racing_, such as transmission shift points/gear ratios, available engine RPM, how many shifts are required to make it to the end of a 1/4 mile, where the engine makes it's power, etc., which must be balanced when talking about a particular kind of race, but none of that changes the fact that a lower gear ratio (higher numerically) will accelerate the vehicle faster at any given engine RPM.

Of course, lowering the final drive gear ratio (raising it numerically) will lower the absolute top speed of the vehicle.

[CIP57_imp]

CIP, I am a bit surprised that taller gearing resulted in quicker acceleration as seems counter to what is done in the automotive world. Is because there is less shifting and more time with power to the ground?

A member here posted a 17 tooth front sprocket run, you will spin up the tach faster but it slows down forward motion.

http://cb1100forum.com/forum/showthread....ket+change

50-100 17 tooth 6.46 Shift point 42/68/90
Completely Stock 5.96 50/83
Yoshi Stock Gear 5.75 50/83
Gear change 19-38 5.61 60/95

This is a fair comparison since all runs are in the power-band and have two shift points. You can see how lower gears produce slower times.

Hope this is helpful.

A member here posted a 17 tooth front sprocket run, you will spin up the tach faster but it slows down forward motion.

http://cb1100forum.com/forum/showthread....ket+change

50-100 17 tooth 6.46 Shift point 42/68/90
Completely Stock 5.96 50/83
Yoshi Stock Gear 5.75 50/83
Gear change 19-38 5.61 60/95

This is a fair comparison since all runs are in the power-band and have two shift points. You can see how lower gears produce slower times.
The runs aren't comparable for a couple of reasons: 1. They weren't performed in the same weather (atmospheric density matters a ton, along with ambient air temperature) 2. They weren't performed on the same track/in the same area (inclination of the land and atmospheric density based on altitude) 3. They weren't performed by the same rider (variances in skill). 4. They weren't instrumented by a calibrated measuring device.

Higher gear ratios (lower numerically) make a vehicle accelerate SLOWER and lower gear ratios (higher numerically) make a vehicle accelerate FASTER. It's physics and there's no disputing it. I have raced cars for well over 20 years and this is the indisputable truth. You are mistaken in your assertion.

A member here posted a 17 tooth front sprocket run, you will spin up the tach faster but it slows down forward motion.

http://cb1100forum.com/forum/showthread....ket+change

50-100 17 tooth 6.46 Shift point 42/68/90
Completely Stock 5.96 50/83
Yoshi Stock Gear 5.75 50/83
Gear change 19-38 5.61 60/95

This is a fair comparison since all runs are in the power-band and have two shift points. You can see how lower gears produce slower times.
The runs aren't comparable for a couple of reasons: 1. They weren't performed in the same weather (atmospheric density matters a ton, along with ambient air temperature) 2. They weren't performed on the same track/in the same area (inclination of the land and atmospheric density based on altitude) 3. They weren't performed by the same rider (variances in skill). 4. They weren't instrumented by a calibrated measuring device.

Higher gear ratios (lower numerically) make a vehicle accelerate SLOWER and lower gear ratios (higher numerically) make a vehicle accelerate FASTER. It's physics and there's no disputing it. I have raced cars for well over 20 years and this is the indisputable truth. You are mistaken in your assertion.
Sorry Bob, but i disagree, put a set of low tractor gears in the CB and tell me what you run. The only thing you increase with lower gears is torque that's it, it may jump out of the hole, pull the wheels off the ground. There are equations used with different rears back in the day higher rears where not faster all the time, there is much more that goes into setting up for time.

BTW my runs where in the same area, temps may have varied a bit but all documented rather well.
Cheers
[/quote]
You may disagree if you like but you're still wrong. Again, it's physics, there's really no room for argument. Saying all it does is increase the torque is like saying all spinach does is make Popeye stronger. With increased torque, more work can be done, and the vehicle accelerates faster because it moves the weight easier and therefore more quickly. This is the reason that vehicles powered by electric motors accelerate so quickly -- 100% of the motor's torque is available at all times and you don't have to wait for it to get to a certain RPM before the motor is outputting maximum torque.

Of course there are other considerations when _racing_, such as transmission shift points/gear ratios, available engine RPM, how many shifts are required to make it to the end of a 1/4 mile, where the engine makes it's power, etc., which must be balanced when talking about a particular kind of race, but none of that changes the fact that a lower gear ratio (higher numerically) will accelerate the vehicle faster at any given engine RPM.

Of course, lowering the final drive gear ratio (raising it numerically) will lower the absolute top speed of the vehicle.
[/quote]
You may disagree if you like but you're still wrong. Again, it's physics, there's really no room for argument. Saying all it does is increase the torque is like saying all spinach does is make Popeye stronger. With increased torque, more work can be done, and the vehicle accelerates faster because it moves the weight easier and therefore more quickly. This is the reason that vehicles powered by electric motors accelerate so quickly -- 100% of the motor's torque is available at all times and you don't have to wait for it to get to a certain RPM before the motor is outputting maximum torque.

Of course there are other considerations when _racing_, such as transmission shift points/gear ratios, available engine RPM, how many shifts are required to make it to the end of a 1/4 mile, where the engine makes it's power, etc., which must be balanced when talking about a particular kind of race, but none of that changes the fact that a lower gear ratio (higher numerically) will accelerate the vehicle faster at any given engine RPM.

Of course, lowering the final drive gear ratio (raising it numerically) will lower the absolute top speed of the vehicle.
Bob,

Lower gears are faster until they run out of legs, the CB runs out of legs with a 17 tooth front sprocket vs stock or 19-38 gears If we where talking 100ths or a couple tenths but a full second, no wind weather etc will make up that difference. Bob, PM me (if your interested) with your e-mail address and i would be more than happy to send you two video to prove my point, same rider, same road just different gearing. The CB does not lose a step with 19-38 gearing, I only had time for one run with the new gearing and bogged out of the hole and my 0-60 is still better.

I don't post something unless i have proof to back it up, if you don't want to take the time to look at it, then please don't tell me I'm mistaken in my assertion.