Nice idea but just wait until Peter Sagan’s legs start pumping his end of stage sprinting HP through that rear cog ….. ping!
leonardusdesign leonardusdesignon July 27, 2019 at 11:23 pm
Have it tested out by PeterSagan at 60 km /hr
mistral55on July 27, 2019 at 11:24 pm
Mud? sand?…
Andrew Montagueon July 27, 2019 at 11:24 pm
I want some that and hate sore legs by hills
Lars Dennerton July 27, 2019 at 11:25 pm
Like any concept vehicle it is not a fully working model but the principal could be developed. Unfortunately there is a reason most motorcycles don’t use shaft drive. Changing the rotational direction and being able to handle the torque introduces lots of friction.
david whitesideon July 27, 2019 at 11:26 pm
china will nik your idea
Sam Chiuon July 27, 2019 at 11:26 pm
Use a solid rear cog then the drive shaft can have a continuous range of movement.
Ghanshyam Singhon July 27, 2019 at 11:26 pm
Brilliant design….. when it would be available in India and how much it would be?
Matchless AJS BSAon July 27, 2019 at 11:27 pm
You said you could change the overall gearing by swapping the drive shaft. If you just swapped the shaft with different sized ‘gears’ on each end the ‘gears’ wouldn’t mesh properly. If the shaft gear was smaller there’d be more backlash and if it was larger you wouldn’t be able to assemble it at all. You would have to reset the shaft mounts to get things to line up and mesh properly.
Jay OLearyon July 27, 2019 at 11:28 pm
To Frail to Derail. only good if you rode in a clean room. add dirt, snow or water and your walking home. but cool concept.
Sjaak McDon July 27, 2019 at 11:28 pm
should, could, will? So nothing built that works then!
Gregory McCoyon July 27, 2019 at 11:29 pm
Show us somebody riding it, that was all jibber until we see it actually move.
glitch107on July 27, 2019 at 11:29 pm
*skepticism intensifies*
ZYKO BMXon July 27, 2019 at 11:31 pm
Freaking brilliant
John Doeon July 27, 2019 at 11:33 pm
They need to encase it somehow so that road dirt, mud doesn’t get in there.
jancreightonon July 27, 2019 at 11:34 pm
lol – that prototype was designed by someone who knows absolutely nothing about the laws of physics. This is what happens when you get a wet-behind-the-ears university engineering graduate, (educated on autocad, who has never had oil on their hands, and who has probably never ridden a bike), to design something. There is a reason why they don’t show anyone riding this thing, and why they never will – because as soon as you put power through those pedals, the entire contraption will explode into a heap of shards, and the "gears"-disk at the back will crumple like tin foil. A total fail.
Keyboard Dancerson July 27, 2019 at 11:36 pm
I see no gear changing.
Victor Silvaon July 27, 2019 at 11:37 pm
You keep telling us how efficient this is compared to the classic chain derailleur system. So if this is 99% efficient how efficient is the classic derailleur system? I have a feeling it’s not too different. If the chain in a classic system is made with bearings it would have zero friction points.
1spiders1on July 27, 2019 at 11:38 pm
Only 10% lighter oh we don’t know not measured it lol
Jacques Brunon July 27, 2019 at 11:41 pm
Could you put this idea to a manual wheelchair?my email, jbrun1961@hotmail.com
Thank you
Pleromaon July 27, 2019 at 11:41 pm
I need to see someone actually using this tech on the ROAD
so one year later (2019) can it switch gears yet hahahahha
Joel Mayoreson July 27, 2019 at 11:50 pm
why don’t you just pedal it to see for ourselves how it works…
Educated Manholecoveron July 27, 2019 at 11:51 pm
Crap. Waste of time watching this trash
Kelvin Hamon July 27, 2019 at 11:51 pm
The angle of load on the large gear loks problematic to me. I woould expect it to warp or buckle over time. Probably okay on the inner ring gear, but outer gear is under huge deflecting load.
Martin Grindrodon July 27, 2019 at 11:55 pm
So they didn’t even manage to weigh it? Plus easiest thing in the world to hook it up to a test bed and see what happens at different power levels, no test data, really??!! I’ll stick with my 3 speed hub thanks!!
Alex de Meloon July 28, 2019 at 12:01 am
I’d like to see it working.
Biami21on July 28, 2019 at 12:03 am
Good concept
FSEVENMANon July 28, 2019 at 12:08 am
Search Angry cyclist kills Drone
Shawn Clarkon July 28, 2019 at 12:09 am
cool
hobpeeperon July 28, 2019 at 12:10 am
Is this something that would benefit slower, less powerful riders and not be enough for really strong cyclists? Sounds like a bit of a leveling technology to me.
Dhgff Fhcdujhvon July 28, 2019 at 12:10 am
Italian : ooow, OOOWW, oowww ….. OOOWWW , ooww, oww.
Beatle Xuson July 28, 2019 at 12:11 am
where cn i buy this …..????
Proculopsison July 28, 2019 at 12:11 am
This is what’s called a "Spoof of Concept"
originalscottfreeon July 28, 2019 at 12:13 am
Looks really neat, lots of possibilities… One issue, what would happen if you threw a hand full of wet mud on that rear sprocket? Asking for a friend.
Sub 2 pewdie Pieon July 28, 2019 at 12:13 am
Fucking spinning wheel of death on the back of your bike
1spiders1on July 28, 2019 at 12:15 am
But what about torque and power ? So when you riding in high gear
Nikola Gnječon July 28, 2019 at 12:16 am
prenos sile je problem zbog posmičnog djela dezintegracije povečanja sile na največem zupčaniku .katastrofalan dizajn sa aspekta mehanike.
Matchless AJS BSAon July 28, 2019 at 12:16 am
You estimated a weight saving of between 10 and 15%. Why didn’t you just weigh the kit and compare with a conventional setup before making the video, then you could give the actual figures instead of an estimate?
Bill Ion July 28, 2019 at 12:17 am
show us shifting it must not work joke
Miss Takeon July 28, 2019 at 12:17 am
*I will stick with my time and trusted bafang e motor*
toxicaton July 28, 2019 at 12:17 am
It certainly looks pretty….
Kristijonason July 28, 2019 at 12:18 am
they are reinventing the gears , and useing batteries to switch gears, how much torque can this system hold without breaking, i doubt that traditional gears are not efficient, maybe just have planetary reductor instead then. Well made gears are mostly rolling anyway because of special teeth profiles. 😀 *sarcasm intensifies*. I am mechanical engineer, that is working on aerospace industry.
DJ Kali9on July 28, 2019 at 12:19 am
What a fucktard
Roger Smarton July 28, 2019 at 12:20 am
A limited attempt at a solution to a problem that doesn’t exist.
Damage, Inc.on July 28, 2019 at 12:20 am
The more you listen, the more you realize it does’nt work.
Jason Smith from CeramicSpeed explains the new innovative bicycle gear system Driven. https://cykelkanalen.se/
Nice idea but just wait until Peter Sagan’s legs start pumping his end of stage sprinting HP through that rear cog ….. ping!
Have it tested out by PeterSagan at 60 km /hr
Mud? sand?…
I want some that and hate sore legs by hills
Like any concept vehicle it is not a fully working model but the principal could be developed. Unfortunately there is a reason most motorcycles don’t use shaft drive. Changing the rotational direction and being able to handle the torque introduces lots of friction.
china will nik your idea
Use a solid rear cog then the drive shaft can have a continuous range of movement.
Brilliant design….. when it would be available in India and how much it would be?
You said you could change the overall gearing by swapping the drive shaft. If you just swapped the shaft with different sized ‘gears’ on each end the ‘gears’ wouldn’t mesh properly. If the shaft gear was smaller there’d be more backlash and if it was larger you wouldn’t be able to assemble it at all. You would have to reset the shaft mounts to get things to line up and mesh properly.
To Frail to Derail. only good if you rode in a clean room. add dirt, snow or water and your walking home. but cool concept.
should, could, will? So nothing built that works then!
Show us somebody riding it, that was all jibber until we see it actually move.
*skepticism intensifies*
Freaking brilliant
They need to encase it somehow so that road dirt, mud doesn’t get in there.
lol – that prototype was designed by someone who knows absolutely nothing about the laws of physics. This is what happens when you get a wet-behind-the-ears university engineering graduate, (educated on autocad, who has never had oil on their hands, and who has probably never ridden a bike), to design something. There is a reason why they don’t show anyone riding this thing, and why they never will – because as soon as you put power through those pedals, the entire contraption will explode into a heap of shards, and the "gears"-disk at the back will crumple like tin foil. A total fail.
I see no gear changing.
You keep telling us how efficient this is compared to the classic chain derailleur system. So if this is 99% efficient how efficient is the classic derailleur system? I have a feeling it’s not too different. If the chain in a classic system is made with bearings it would have zero friction points.
Only 10% lighter oh we don’t know not measured it lol
Could you put this idea to a manual wheelchair?my email, jbrun1961@hotmail.com
Thank you
I need to see someone actually using this tech on the ROAD
So many experts in the comments section.
Cagata pazzesca!
OK, I am sold….now how do I switch the gears?
nothing new under the Sun here…
take a look at an old skool bike: https://www.youtube.com/watch?v=LRKElZ3HrPc
more:
https://www.youtube.com/watch?v=PUGihIPRec8
or
https://www.youtube.com/results?search_query=old+chainless+bicycle
so one year later (2019) can it switch gears yet hahahahha
why don’t you just pedal it to see for ourselves how it works…
Crap. Waste of time watching this trash
The angle of load on the large gear loks problematic to me. I woould expect it to warp or buckle over time. Probably okay on the inner ring gear, but outer gear is under huge deflecting load.
So they didn’t even manage to weigh it? Plus easiest thing in the world to hook it up to a test bed and see what happens at different power levels, no test data, really??!! I’ll stick with my 3 speed hub thanks!!
I’d like to see it working.
Good concept
Search Angry cyclist kills Drone
cool
Is this something that would benefit slower, less powerful riders and not be enough for really strong cyclists? Sounds like a bit of a leveling technology to me.
Italian : ooow, OOOWW, oowww ….. OOOWWW , ooww, oww.
where cn i buy this …..????
This is what’s called a "Spoof of Concept"
Looks really neat, lots of possibilities… One issue, what would happen if you threw a hand full of wet mud on that rear sprocket? Asking for a friend.
Fucking spinning wheel of death on the back of your bike
But what about torque and power ? So when you riding in high gear
prenos sile je problem zbog posmičnog djela dezintegracije povečanja sile na največem zupčaniku .katastrofalan dizajn sa aspekta mehanike.
You estimated a weight saving of between 10 and 15%. Why didn’t you just weigh the kit and compare with a conventional setup before making the video, then you could give the actual figures instead of an estimate?
show us shifting it must not work joke
*I will stick with my time and trusted bafang e motor*
It certainly looks pretty….
they are reinventing the gears , and useing batteries to switch gears, how much torque can this system hold without breaking, i doubt that traditional gears are not efficient, maybe just have planetary reductor instead then. Well made gears are mostly rolling anyway because of special teeth profiles. 😀 *sarcasm intensifies*. I am mechanical engineer, that is working on aerospace industry.
What a fucktard
A limited attempt at a solution to a problem that doesn’t exist.
The more you listen, the more you realize it does’nt work.