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1 by 13 Speed drivetrains.

KenW449

Thanos did nothing wrong
Jun 13, 2017
2,704
329
Floating down the whiskey river...
Ceramicspeed? How long before this doesn't take off? I know on Motorcycles, shaft drives are the least efficient drive system, followed by belt and then chain. But maintenance on shaft drives are the lowest, with chains being the highest. I can only imagine this to be true with bicycles as well. So not sure how a shaft driven bike is 99% efficient.

I also realize this is a road bike, but the road thread sucks and I'm focusing on the drivetrain, not the bike.

 
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dcamp29

Monkey
Feb 14, 2004
589
63
Colorado
Ceramicspeed? How long before this doesn't take off? I know on Motorcycles, shaft drives are the least efficient drive system, followed by belt and then chain. But maintenance on shaft drives are the lowest, with chains being the highest. I can only imagine this to be true with bicycles as well. So not sure how a shaft driven bike is 99% efficient.

Looks like that thing would place a massive amount of pressure on 2-3 teeth at a time... a chain spreads load over 1/2 the cog (roughly).

Mud might also be a problem?
 

dcamp29

Monkey
Feb 14, 2004
589
63
Colorado
Yeah- I can't imagine it's more efficient than a chain (nothing really is).

Also you can't stamp all the cogs due to the 3-D shape- so making it cheap is not going to be easy.
 

Tantrum Cycles

Turbo Monkey
Jun 29, 2016
1,143
503
Now imagine it on a full suspension bike.. you could build plunge into the shaft to take "chain growth" into account, but maybe good luck keeping it engaged over rough terrain
 

jonKranked

Detective Dookie
Nov 10, 2005
85,558
24,181
media blackout
Yeah- I can't imagine it's more efficient than a chain (nothing really is).

Also you can't stamp all the cogs due to the 3-D shape- so making it cheap is not going to be easy.
guys i think this is much ado about nothing. it's just a concept that they showed, i don't know if it's something they could realistically bring to market without being outrageously expensive.
 

dcamp29

Monkey
Feb 14, 2004
589
63
Colorado
Yeah- its a super cool concept. I think it's really innovative but lots of problems going forward from concept phase.
 

KenW449

Thanos did nothing wrong
Jun 13, 2017
2,704
329
Floating down the whiskey river...
Now with a drivetrain like ceramic speed, wouldn't it be theoretically possible to put the cassette, (or whatever it's called), up front where the chain ring goes and put the chain ring on the wheel? Just add teeth to the outer most cog and switch it to chain drive. Would need to come up with a new front derailleur, but it would be lighter than a gearbox but still have the weight in the center of the bike.
 

Gary

"S" is for "neo-luddite"
Aug 27, 2002
7,535
5,470
UK
I remember hearing about them working on crazy stuff like single sided chains too.
Annoyingly they already do single direction chains.

as required to fit their single direction jockey wheels.

Fuuuuck off