enduo drivetrain

what is this witchcraft?!

claims 3.5x longer life over conventional drivetrains? 🤔

https://www.newmotionlabs.com/enduo-track/

Interesting idea, but only compatible with 11spd chains. Even I've broken plenty of those, and I'm not even close to putting out track sprinter watts

it looks like there's a cargo version I the works with a heavy duty chain as well.

There are no new ideas

Yeah, but were those teeth designed to jam between the rollers like this one, or was ye olde skip-tooth just that, with a standard tooth profile?

Seems like that's where the efficiency gain is coming from.

You can't pull a chain from the back of a tooth

I don’t want to come across as some kind of know it all but have you even heard of magnets? This is literally back-tooth magnets at their best and this efficiency couldn’t happen without them.

I don't know what the fuck this is but their graph comparing their stuff against 14W drivetrain losses for Olympic track chains is horseshite.

have you even heard of magnets?

I like how the ‘How Does Enduo™ Track Work?’ paragraph doesn’t explain how it works.

Magnets, of course! My bad

So the consensus is the University of Bath is just a slovenly trollop then, I take it

Also saw these by a different manufacturer, but seems like they're licencing Enduo's desing.
https://www.velobike.co.nz/products/nml-track-chainring
https://www.velobike.co.nz/collections/sprockets-1/products/enduo%E2%84%A2-track-sprocket

I think the idea is that by locking in the rollers position relative to the tooth they reduce the movement/friction between the roller and the tooth, and only reintroduce a fraction of it by more rotation between the chainlinks & rollers. Then they reduce the number of teeth by half, and you get an overall more efficient system.

I think. They're not doing a great job of explaining the how.

And Im sure theyre doing it for commercial purposes to recoup their investment on equipment, but I think its cool that if you had the cash, you could rock up to their own testing rig with your own stuff, and compare apples to apples.

What @kiskubai said. Was pretty much my intuition of how it's supposed to work. Seems like a clever refinement, if only for single speed.

Wattshop