I9 Hydra freehub body demo

[@PedalingDave]

Wow, 690 poe is nuts! Time will tell on how robust it is I suppose but hopefully it'll rock and I9 will take good care of any issues.

[@BikeObsessed]

Nuts indeed. It’s hard to comprehend how much different these feel than Torch. I’ve got just under 6 months on a set, and so far so good - my favorite wheels/hubs to date. Check out the full review of the Enduro 310 Carbon Hydra here: bikerumor.com/2019/02/12/review-industry-nine-hydra-equipped-enduro310-carbon-29-mtb-wheels/

[@dkgray828]

I think I found my favorite ASMR video.

[@CarlosSanchez-cq1lf]

Hail Hydra

[@Ash-bx6kq]

Can I buy just this?

[@johnericbeaman]

Can I buy this somewhere?

[@TheRadChannel]

What are the teeth/pawls made of? If only one pawl engages at a time how will these last unless they are made from adamantium?

[@BikeObsessed]

They are machined with a wire EDM system out of hardened tool steel. There are always at least three pawls engaged so durability shouldn’t be an issue but I’ll report back if it is!

[@riammey]

I heard from fanatik bike co that they said that when one of the pawls engages then the flex in the hub will make other pawls engage as well either 2-4 pawls will be engaged when you pedal, which sounds weird and am curious to see if it will hold up, i9 has been testing it for 2 years though

[@bonride8344]

Wowwwww

[@mtbboy1993]

It would be interesting to see a comparison between onyx industry nine annd other brands, also a brand i see little about is Project 321, I heard they had some issues but interesting. But so far i9 and Onyx were the most interesting options, onyx has steel i sets on the hg splines on the freehub.

[@wenyudong7758]

Johannes Nilsen got my hands on a onyx rear hub few days ago. The engagement is crazy. You can’t even feel anything inside the free hub when you rotating it. And when you change the direction, all of sudden it stop.

[@Rexuar]

more points of engagement is great and all but does that meant that on any given time that only one pawl is engaged when pedaling? is that good for longevity? DT star rachet is my preferred

[@101NomadDreams]

The Hydra system is designed to have flex. The harder you torque, the more things flex and the more pawls engage.

[@balintgyulay425]

I have chris king and i think the chris king sistem is much more durable, but it is a nice hub too.

[@jebusdiaz1083]

The best......!

[@pukki34]

Hmm, so all the pawls dont engage at the same time? How long that gonna last

[@DaStuntChannel]

there is some flex in the system, when you pedal, more than one engage

[@torquecanyon8424]

Hi, what makes this hub 690 points of engagement?

[@anthonywalters7434]

A pawl engages every 0.37° meaning that in one full rotation you have 690 points of engagement. My Hunt Enduro Wide V2’s have 72 points of engagement. With a pawl engaging every 5°.

[@Ronnytrials]

Shimano Silent Clutch has zero degrees engagement and silent. :D

[@101NomadDreams]

Shimano has more than 0 degrees, and while they are silent at speed, I don't believe they operate on a clutch system like Only or Box.

[@Sallyboy864]

You are getting sleepy very sleepy😴😴😴

[@cheryee3659]

Better then hope hub

[@mtbboy1993]

For sure, if it is as reliable, but sure looks promising. I will defenitly upgrade from pro4 to something with more engagement maybe hydra, or onyx, or project 321.

[@abllehsabiel5860]

690 POE ?? 😳😳😳

[@ClaviculaNotoria]

just make a sprag clutch... less noise less friction

[@101NomadDreams]

Not everyone wants the weight and some people like noise.

[@ratoneJR]

all that friction will feel like your brakes are dragging. uhh ....no.

[@mirceaandreighinea]

but... one click meaning only one pawl engagement, while the others not making full contact??

[@alecfotsch3533]

I'm also curious how many pawls are engaged at a time. With everything getting so small it'll be interesting to see if they remaining bombproof.

[@BikeObsessed]

There are always at least three pawls fully engaged at a time to take the load.

[@mirceaandreighinea]

you can play the video in slow motion (select speed 0.5 so you can still hear the sound) and look only at one pawl. it will click, meaning full contact, then you will hear another 5 clicks and during this time that pawl (you're looking at) will move and not making contact with the big ring, therefore no engagement... i really don't understand why is that and where is the "progress" of this system...

[@tomaszkorablaskowski2937]

Check my math but I think its .52 degrees of engagement ...

[@mirceaandreighinea]

you can play the video in slow motion (select speed 0.5 so you can still hear the sound) and look only at one pawl. it will click, meaning full contact, then you will hear another 5 clicks and during this time that pawl (you're looking at) will move and not making contact with the big ring, therefore no engagement... i really don't understand why is that and where is the "progress" of this system...

[@alecfotsch3533]

This is actually pretty cool. "Each tooth on the drive ring is very small,” says Jacob McGahey, vice president of Industry Nine. “Pawls are evenly spaced, and each one of them is 1/6 away from contacting a tooth. One pawl will be the first to hit, but the second, third, and fourth are only a fraction of a millimeter away. The microscopic flex of the axle and other components allow the second and third pawl to come in contact with drive ring, which means you’ll always have at least three pawls engaged." www.velonews.com/2019/02/bikes-and-tech/testing-today-industry-nine-hydra-hubs_483369

[@alecfotsch3533]

It mus be that since no force is being applied to drive the hub the flex that would take place under load while pedaling isn't happening.

[@mirceaandreighinea]

aaa, so they count on the flex of the pawls/ring... pff, interesting :-)

[@mirceaandreighinea]

still... that asymmetric work over the big ring does not look good to me... cause you have: one full contact, one flexed a little, and one flexed more (or somewhere in the system there is load on one side and less load on the other)... me, i would cut everything in two phases, 3 pawls full contact, then the other 3 in full contact... this way you get symmetric work/load over that big ring. yes, fewer clicks per one rotation (three times less) but still plenty enough in my opinion.

[@PickledAmericano]

@@mirceaandreighinea that is exactly how their 120 poe system works. I find it interesting that the 3 engaged pawls of the 690 system are adjacent to each other, instead of in a triangle configuration. Maybe that way less torque is required to engage the other 2 pawls? Hmmm..

[@zehel1058]

i thought pawls always engage at the same time woah

[@crypto9915]

badly. There will be all the effort on one dog, this is bad