Blown up 2 Ztto M1 hubs.  killed the 54t ratchets  replaced with fovno ratchets then killed the spline that connects the ratchet to the hub.

Have multiple sets of Goldix hubs that I beat on.
Goldix hubs have been bullet proof. Oldest Running for 2 years now trouble free

Goldix hubs are great.  I'm a big dude and ride like a gorilla and break everything
36t ratchet is solid...I've blown up a LOT of hubs.
This is much more solid than the ztto hubs

I've been riding them for a year hard Mtb riding on a bike with high pedal kickback that blows up a lot of hubs this one is SOLID.

Bearings are a little cheap I expect I'll need to replace the outboard bearing but these are cheap common and readily available .

They will also do custom logos for a reasonable price if you are not into gold Dix

I've hucked  my bike to the point of exploding tires are rims and these hubs took it

I have ordered 3 or 4 wheelsets from. Them 10-20 days was normal response time between order and shipment

The level of customization they are clearly being built to order

Some pandemic problems occur in that region in China at the moment as well so everything will take longer 20-30 days would not alarm me. I'm m currently waiting in another set myself as well

I've sussed out how to build a wheel using this and have done it using sk75
I have come to the conclusion through trial and error that dm20 is the only option.
I'm just hunting for some dm20 in 1.5-1.8mm 12 strand braid or greater.


I have tried the fl 32NG lines, coincidentally some worn  kitesurfing equipment I had was from this era.
as an 8 strand they are MISERABLE to eye splice and seem very fragile to cuts in that diameter at that age.

1.8mm is ideal 2.0 mm would be good   2.5mm will be too large for most spoke holes.

Marlow used to sell a 1.8mm dm20  I can't find it anywhere anymore and contacted marlow directly there were  out of stock with no plans to renew. 

If anyone finds some dm20 or convinces a manufacturer to make some, I'm in for a roll

The ztto 54t ratchets in the M1 hubs fail....it is known

I doubt it'll be light but most of the knock off stuff isn't doing any engineering just copying
Sometimes you get some gems

The POC glasses with interchangeable lenses on Ali are really good.  I run the yellow 100% of the time but have some other goofy mirrored and polarized lenses in the kit

Example
C$ 19.36  50％ Off | 4 Lens Cycling Sunglasses Outdoor Eyewear Men Women Cycling Glasses
https://a.aliexpress.com/_mLzTuEv

Curious If anyone has sampled one of these yet
Looks a shameless fox knockoff wondering if that goes for the internals as well?

https://a.aliexpress.com/_uyQqVL

Anyone test pilot one?

After some Successful single spoke tests I made a complete wheel
I'm still  chasing the weak links I've switch to welding the spoke ends as the soldering is too process dependent and caused about 4 spoke ends failures that likely didn't join well.

Also have some simple to solve issues with spokes pulling out of the hub now that the weak spoke ends are  strong enough.

Still trying to source some small diameter 12 strand dm20 They aren't really holding tension terrible well but I know there is some slippage in the hub interface

So damn light though lighter than the silvertons or bontrager XXX....bike needs a bigger chainring after throwing some light XC tires on these things.

Subscribed!  Beauty find

https://www.mtbr.com/threads/make-your-own-polymer-uhmwpe-spokes.1091276/

Look here page 19-20 some guy bent spoke ends and tig welded it.
then put it together using kitesufing line and some fancy eyesplices.

I've tested soldering and it works fine.  rope breaks before spoke end does >180kg.
a bit fiddly getting it to stretch out to the correct  length.  but about 1/2 the weight of a good spoke.
some prestretching is likely neeeded to set the eyesplices properly



inspired by berd spokes. but in my opinion a more elegant solution and a work around their patents. 
I've got a few spokes made up like this in my existing wheel build to see if they cause any problems or stretch badly causing out of true scenerio
I'm using regular dyneema kitesurfing line and haven't bothered with the DM 20 cause I have tons of the regular stuff laying around and am wondering if it'll creep badly or if it's good enough.

I suspect that the replacement ratchets  ztto sells could be different possibly better made than what is in those hubs. The hubs are pretty generic around AliExpress with many different names and logos

Also I could have just gotten a turd. 
Reading Mtbr reviews the guys on the German forums didn't have any luck with these hubs either until they switched to dt Swiss guts

I haven't heard bad things about the ztto ratchets that are sold separately....course I don't ride them either

I have 2 wheel sets with these hubs I plan to run the crap out of the other ones (with a set of ratchets in my pocket) and see if they break as well as beat on the ztto ratchets  I'll report back confidence or failures


I really like the idea of good affordable lightweight  hubs...and want them to work
lace these with a set of DIY dyneema spokes and carbon rim from Btlos and you can get a 1200g Wheelset for like 500-600 bucks

Buying dt Swiss internals at retail kills the value equation here though

Quote from: Icyseanfitz on January 25, 2021, 06:22:22 PM
Im using this ali super leggera copy on my 160mm hardtail and road bike, surprisingly robust and strong considering i am 105kg.


https://a.aliexpress.com/_mKtqzRr

I purchased one of these,   
It bruises my ass with good shorts. Seems too narrow with too much slant where the bones of my 180 lb frame. fit.
the tissue between my  pelvic bones gets pinched  loads  up and then suddenly slip past one another while riding. ....it's an awful sensation.

Durable enough, light enough, beautiful part. great price....but sucks as a seat for me.
gave it two rides and had to take 4 days off riding...to sit back on a seat.  I'm done with it.

I have some specialized bontrager, wtb and selle italia seats currenlty .....this is far and away the worst seat I have ever ridden in 30 years of mountian biking.  Your mileage may very.

Quote from: cst_jpr on February 01, 2021, 03:08:18 PM
Photos of the internals please. I'm guessing it cracked?
Rider weight and max rear ring might also be relevant. I suspect if you have rear 40T vs rear 20T thats going to be half the force hitting the ratchet.

Internals are still intact no obvious signs of destruction. very little marring on the teeth and not excessive lubrication,  dry parts or contamination present they look good but they slip under torque
I tried pulling the springs to get them a bit stiffer, still skips.
I took the ratchet out and put them into a dt swiss hub....it skips.in the dt swiss hub
I put the DT swiss ratchets out and put them in the ztto hub....the ztto hub works fine with the DT Swiss ratchets.
And naturally the DT swiss ratchets back in the DT swiss hub works fine again.
So it is 100% the ratchet gears.

contacted ZTTO and requested a 36T, they indicated they would send one,  haven't received it yet....but it's still within the normal delivery time from Ali parts
in the mean time I purchased a 18T dt swiss set of ratchets and have carried on using the hubs.    (18T cause they are cheap as dirt and readily available from people who upgraded)

I'm 180lbs a strong rider and I heard it skip a few times previously on some rocky technical climbs,  eventually giving out on a rocky climb that requires some sprinting to clean the obstacles. To the point where it could not sustain enough torque to pedal out of anything.

As mentioned the bike I ride has some high suspension travel chain growth and  notable pedal kick back at low speed when it goes deep into the travel. So loads could be considerable...
that stated I've run legit DT swiss hubs  for much longer with no issues.


In fact this is the first hub I've ever blown the guts out of. without years and years of use and no maintenance.

Update: i broke them after about 150km of riding
ratchet mechanism skipping