Eliminating the driven sprocket
- Thread starter Pablo
- Start date
So I measured the distance between the shaft and the seat tube and it is about an inch and an eight so as long as you have an inch and a quarter of space between your seat tube and tire you should be fine.
Thats about it is 1 1/4 but no matter been making things fit for a long time..(round pegs and square holes dont scare me) but I have a back up just in case I just wanted to try it on the larger wheels to see how it performed mainly.
Thanks again for all the hard work you two have done I think you can tell by everyones responces to your kits that we are going to be grateful for your efforts.
Terry
Thanks again for all the hard work you two have done I think you can tell by everyones responces to your kits that we are going to be grateful for your efforts.
Terry
We will be selling this set-up as a kit sometime in spring.
We are still refining it, working a few logistics issues. Sourcing the big dollar item the crankset is complete just need to settle on volume.
This is a commercial enterprise. Well OK we are a couple of clowns. He's the engineering muscle. I'm the the guy with a headache.
I'm open to your thoughts.
I want to start a mb buisness but dont like the driven sprocket or the expensive options. Is your system for sale yet? do you have a url for me?
dave 954 773 4333
If you got the $$$ to R & D i'm sure i could finish my jackshaft setup.
Got full cad model specs ect.
Prolly start up a thread over here but check it out.
DIY Jackshaft / Freewheel / Shift Kit - MotoredBikes.com: Motorized Bicycle Forum
After you look that over let me know.
Be easy to make it into a belt drive.
BTW.
Yes that is similar to the SBP design but in many ways different.
All the work done in the above mentioned thread is my own.
Yes that is similar to the SBP design but in many ways different.
All the work done in the above mentioned thread is my own.
I like the fact that it mounts to the motor and moves (vibrates) with the motor. Its more simple and alignment is no issue. Are you going to sell these. And what about pull start and an extra freewheel so you dont have to turn the extra chains when manual bicycling. This is a big bone of mine. So far, motorized bikes are sucky bikes.
dave 954 773 4333
dave 954 773 4333
it IS what sick bikes sell. check the dates on the posts. this is an old thread detailing how they made it...
Ok,I just read the last page of the new posts,didn't have the time to go through the whole darn spiel,ok, that answers my question, I was under the impression you were building a new similar setup....Pete
Naa i started a thred on another site with a jackshaft setup started allmost from scratch.
1st of all these are solid billet mounts that provide a much larger contact area between the frame and motor.
This solves the issue of breaking the frame and also helps with vibration, as well as allowing the end user to permanatly attach the mount to the motor.
It uses different gear ratios and bearings and a sprague clutch for a freewheel.
Eliminating the need for the expensive $70.00 white freewheel that still isn't built to handel the stress applied to it.
This system has been Run through Finite Element Analysis and the hand calculations to verify the results to be a total reliable system.
This design is created with the intention of adding on.
Generators for power generation and even the possibility of a generator / starter system.
It includes details for the charging circut which has been prooven in RC Helicopters that cost thousands of dollars.
I guess thus far the biggest difference is every step of the design has been publically displayed for the benifit of all. (NON PROFIT).
And believe me when i tell ya i have a coupla hundred hours invested in the design.
And $50,000 debt to go to school and get an engineering degree to do stuff like this.
My intentions were not to make a profit but to provide the common man with everything he would need to go to a machine shop and have one made.
Now when it comes to marketing if someone duplicates exactally what i have done and profits from it shame on them.
For the end user that is simply wanting to have his own created go you, that's what this was intended for.
At this point the design as posted is still fairly incomplete.
Allthough i have completed most of it and to finilize the design will be little work.
I didn't recieve the response and support of the public that i expected too.
I fear someone will adapt the desin and profit largely because of it at which point i would be upset.
However the concensus on this forum seems to be a little different.
People who go above and beyond to help seem to be appreciated rather than scorned.
So at this point it seems i could put the only other jackshaft kit on the market.
Seeing how i only have one competitor.
But alas i woul rather put this kit in the hands of the people.
To use and adapt to there own needs.
To admire and appriciate the work someone did for there benifit.
And for thoose wishing to mfg and market my design.......
The people not intrested in building there own need the ability to get the same product.
So i wouldn't have a problem with MFG of the kit.
Only that i be compensated in some way.......
How's about the Forum Recieves From the MFG a percentage of the Profits.
A percentage for each unit that is sold.
That really helps the entire community and that is my goal.
Sounds more than fair to me.
Any takers.
What do the rest of you think???????????????
I guess either way i'm gonna do this thread.
It just motivates me more when i have public support.
Sincerly
Your Mannnnnn
Riding Rich.
1st of all these are solid billet mounts that provide a much larger contact area between the frame and motor.
This solves the issue of breaking the frame and also helps with vibration, as well as allowing the end user to permanatly attach the mount to the motor.
It uses different gear ratios and bearings and a sprague clutch for a freewheel.
Eliminating the need for the expensive $70.00 white freewheel that still isn't built to handel the stress applied to it.
This system has been Run through Finite Element Analysis and the hand calculations to verify the results to be a total reliable system.
This design is created with the intention of adding on.
Generators for power generation and even the possibility of a generator / starter system.
It includes details for the charging circut which has been prooven in RC Helicopters that cost thousands of dollars.
I guess thus far the biggest difference is every step of the design has been publically displayed for the benifit of all. (NON PROFIT).
And believe me when i tell ya i have a coupla hundred hours invested in the design.
And $50,000 debt to go to school and get an engineering degree to do stuff like this.
My intentions were not to make a profit but to provide the common man with everything he would need to go to a machine shop and have one made.
Now when it comes to marketing if someone duplicates exactally what i have done and profits from it shame on them.
For the end user that is simply wanting to have his own created go you, that's what this was intended for.
At this point the design as posted is still fairly incomplete.
Allthough i have completed most of it and to finilize the design will be little work.
I didn't recieve the response and support of the public that i expected too.
I fear someone will adapt the desin and profit largely because of it at which point i would be upset.
However the concensus on this forum seems to be a little different.
People who go above and beyond to help seem to be appreciated rather than scorned.
So at this point it seems i could put the only other jackshaft kit on the market.
Seeing how i only have one competitor.
But alas i woul rather put this kit in the hands of the people.
To use and adapt to there own needs.
To admire and appriciate the work someone did for there benifit.
And for thoose wishing to mfg and market my design.......
The people not intrested in building there own need the ability to get the same product.
So i wouldn't have a problem with MFG of the kit.
Only that i be compensated in some way.......
How's about the Forum Recieves From the MFG a percentage of the Profits.
A percentage for each unit that is sold.
That really helps the entire community and that is my goal.
Sounds more than fair to me.
Any takers.
What do the rest of you think???????????????
I guess either way i'm gonna do this thread.
It just motivates me more when i have public support.
Sincerly
Your Mannnnnn
Riding Rich.
YES YES YES A NEW SIMILAR SETUP.
But with a wayyyyyy different Intention.
What yall think.
yes or no.
Will i be wasting my time?
This was also intended to cater to the 4 Stroke fellas as well.
Hit me back.
Ridin Rich
But with a wayyyyyy different Intention.
What yall think.
yes or no.
Will i be wasting my time?
This was also intended to cater to the 4 Stroke fellas as well.
Hit me back.
Ridin Rich
very good idea. This is a small enough market to still have a tribe mentality. For the small profits involved balanced with the big work it takes, its not likely that you will get screwed. I would like to mfg it but dont have spare $$$. I definatly want to make one and add a starter motor and add my 2 cents to the forum. Can u list your parts sources?
Ok i'll get the thread started tommorow.
It'll be more appropriate than hijacking this thread like we have.
I don't have a started figured in the picture yet but i don't see hpw it would be difficult to do.
I have this all 3d modled so changes are easy.
It wasn't 100% complete yet still some work 2 do.
I can provide working Drawings ECT.
If we could get a team together here we could have one awsem jackshaft.
It'll be more appropriate than hijacking this thread like we have.
I don't have a started figured in the picture yet but i don't see hpw it would be difficult to do.
I have this all 3d modled so changes are easy.
It wasn't 100% complete yet still some work 2 do.
I can provide working Drawings ECT.
If we could get a team together here we could have one awsem jackshaft.
This is a really good idea,well built,and looks great, I just cant understand how the pedals free wheel when the jack shaft is driven off the pedal gear down there..??? It must work like a ratchet somehow?? Pete
Pete, If You Are Talking About Sbp Kit, The Free Wheel Bearing On The Pedal Crank Is A Ratchet, But Silent. That Is What Is In The Rear Wheel Cassettes Also. Handy Little Buggers. Ron
Personally i was figureing on getting rid of the freewhwwl.
A sprague clutch would be used on the front crank.
This is a bearing that allows free rotation in one direction.
These clutches are used mostly in convayer systems and such where if the driving motor stops driving it will hold the convaryer from moving backwards.
Thay are also used in motor couplings where more than one motor is used to drive a system.
It allows one motor to overrun "spin faster than the other"
Primarily these are safty devices which can handel major loads.
The white freewheel is the best there is as far as a freewheel.
But if it fails and i have heard of it failing the pedels are gonna spin reallly fast and that could be really painful.
Now don't get me wrong the SBP Kit is totally awsem and if i had the money i'd buy it.
again there kit is SWEET.
But i love to design and i love to engineer and i have the resources to get this thing made.
So other than time it cost me less.
SBP rocks and without people like them we wouldn't have half of what we do.
I just like to make my own custom stuff.
And i like to share it with all of u.
New jackshaft thread coming soon.
A sprague clutch would be used on the front crank.
This is a bearing that allows free rotation in one direction.
These clutches are used mostly in convayer systems and such where if the driving motor stops driving it will hold the convaryer from moving backwards.
Thay are also used in motor couplings where more than one motor is used to drive a system.
It allows one motor to overrun "spin faster than the other"
Primarily these are safty devices which can handel major loads.
The white freewheel is the best there is as far as a freewheel.
But if it fails and i have heard of it failing the pedels are gonna spin reallly fast and that could be really painful.
Now don't get me wrong the SBP Kit is totally awsem and if i had the money i'd buy it.
again there kit is SWEET.
But i love to design and i love to engineer and i have the resources to get this thing made.
So other than time it cost me less.
SBP rocks and without people like them we wouldn't have half of what we do.
I just like to make my own custom stuff.
And i like to share it with all of u.
New jackshaft thread coming soon.
Rich, Whats The Difference Between A Free Wheel Brg And The Sprague Clutch??? Free Wheel Sprockets Are Standard On The Rear Wheels Of All My Schwinn Occ Choppers. They Are Used In Many Scooters. They Are What Makes The Shifter Kits Work. They Are Made Of Hardened Steel And Tuff. Ron