A QS 2000 motor mount from Cyclone 3k plates etc

[DingusMcGee]

Dogdipstick,

You have not established that the same chain link hitting the same tooth creates a deviant path thereby fostering faster chain wear.

For gear meshes the same teeth touching each other can occur regularly and no problem.

 

[DogDipstick]

Dogdipstick,

You have not established that the same chain link hitting the same tooth creates a deviant path thereby fostering faster chain wear.

For gear meshes the same teeth touching each other can occur regularly and no problem.

This is a w4ell established fact, that which you should know about.
If you do not know what a " hunting ratio " is, please learn.

The world famous gearing commander... and a multitude of motorcycle mechs, disagree withyou. Very, very well established in the world of gear design.

Your car would die in 10,000miles ( diff would go out) if it idid not have a hunting ration. A milion other things use a hunting ration too. The orgin of ration like " 3.57:1" and "4.10:1" ( why the FUK you think they use those specific numbers, eh? ) ... the roots of this number is in a hunting ration. Hunting rations are used every day by billions, and EVERy OEM MOTORCYCLE comes with a hunting ration in the chain system.

Every. Single. One. Sold. In . The . World.

I can pull up th OEM chain ( as bought, designed by the motorcycle engineers, Honda, Duvcati, Yammi, ect...) configurations and tell you the ration, and how it hunts. I can show you 1,821 examples of this.

This is well established, engineering fundamental, a hunting ration lasts longer. Known since the first gear, mankind, made.

Here are three links, that you very well may read, and take back that statement,.

Such is long established, I do not need to, establish anything.... it has already been established.

Read and learn, please.

Nice bike.


https://www.gearingcommander.com/gc_howto28.htm

https://www.gearingcommander.com/gc_howto27.htm

https://www.gearingcommander.com/gc_howto26.htm

(Quote directly from the (World famous) Gearing Commander website. )

So when this chain rotates once, both front and rear sprockets are in the same position and hit the same link all the time. This is not good.

A fourth link.
https://www.google.com/search?client=firefox-b-1-d&q=hunting+gear+ratio

 

[DogDipstick]

Dogdipstick,

You have not established that the same chain link hitting the same tooth creates a deviant path thereby fostering faster chain wear.

For gear meshes the same teeth touching each other can occur regularly and no problem.

Incorrect.

 

[DingusMcGee]

Hunting Tooth Frequency
Hunting Tooth Frequency (FHT) - Is the phenomenon in which two teeth - one on each gear - that are damaged contact one another at a particular frequency.

Note the word “damaged”?

 

[DogDipstick]

Note the word “damaged”?

Yes. This is the definition of damaged.

dam·age
/ˈdamij/
Learn to pronounce
verb
past tense: damaged; past participle: damaged

inflict physical harm on (something) so as to impair its value, usefulness, or normal function.
"the car was badly damaged in the accident"
h
Similar:
harm

do damage to
injure
mar
deface
mutilate
mangle
impair
blemish
disfigure
vandalize
blight
spoil
defile
desecrate
tamper with
sabotage
disrupt
play havoc with
vitiate
ruin
devastate
destroy
wreck
cripple
trash
disfeature
h
Opposite:
repair
improve

have a detrimental effect on.
"the scandal could seriously damage his career"

Quote # 2 from the motorcycle gearing website.

The Worst is of course 1 rotation (background marked red) when every rotation of the chain all teeth hit the same link all the time.

 

[DogDipstick]

Hey.... an ebike with a 12/40 in the drivetrain? Who cares. It's an ebike...

.. but a 200hp Ducati wouldnt last an hour,, at speed, with that kind of a ratio in its geartrain. Lol. Just sayin.

 

[DingusMcGee]

The nice thing about an actual damaged tooth is that it’s difference from rest of them can be measured. Case is closed.

 

[DingusMcGee]

Dogdipstick,

No too long ago I built a primary/secondary drive train that had teeth counts that were all prime numbers. The rear had a 59T sprocket made by Sprocket Specialists in Utah.

No such thing as extended longevity for the chain and sprockets was noticed.

Conclusion: incorporating the prime number feature on an edirtbike drivetrain used as such (riding on quartzite substrate) did not extend chain longevity over even numbered teeth configurations w/even numbered chain links that I had employed previously.

It seems only if I rode the prime teeth edirtbike only on very clean pavement and used some spectacular dry lubricant could this Hunter Ratio Effect have significance when some teeth were damaged. Then the extra wear caused by a damaged tooth would be distributed over the entire drive.

Some motor-gear-heads and bike-gear-heads get anal about frivolous insignificant details. I guess they do not understand the design idea “insignificant” and when it is applicable to a design. Are you one?

 

[DogDipstick]

Dogdipstick,

No too long ago I built a primary/secondary drive train that had teeth counts that were all prime numbers.
Some motor-gear-heads and bike-gear-heads get anal about frivolous insignificant details. I guess they do not understand the design idea “insignificant” and when it is applicable to a design. Are you one?

Yup certainly. I overthink a ton of things... and try to sound smart, to no avail, in the subjects we love.

.....but a hunting ratio for longevity is something adhered to by all bicycle techs and motorcycle techs if they were trained.


Matters on a 200hp Duke but on a 1hp ebike who cares. I do say, wear is not often trivial on bicycle drive trains. I have big problems with chains and wear, my whole life. I hate a tight chain, I hate a slappy chain, the chain is only good for half or one season for me. Then its trash for me. One little rock gets in and deforms a toot/roller, that might be repeated in the hundreds of thousands of contacts per mile, millions of tooth/roller contacts per 100 miles.. and so on... They are made for 1/5 a hp, like 150w output... not the 1000-10,000w output we like on our ebikes. One of the reasons your sprocket mods caught my eye.. making a 428 work.

Uniform wear? Wear is wear, from dust, and the like, curving those little bicycle sprocket teth into hooks. Every bicycle chain I power becomes trash in like a week... IDKY.

Just trying to look out. I have a mid drive with a 219 reduction to a tiny pulley.. and I fear the " CHAINNOISE" more than anything cause I like a silent ride. i am just weird. It is just something to know. Bike mechanic trivia.

What you say is true, case closed.