ZTTO MTB M1 Boost hubs 28H 54T Ratchet

[tranman]

I'm assuming they use a standard bearing spec rather than something proprietary?  Why not just get some decent ceramic ones from Ali?

Bearings appear to say 6802 RS, standard size.

[cazarin]

Hello

I'm new here, I bought these ZTTO M1 hubs
I need to assemble the complete wheel, but I'm having trouble calculating the length of the spokes.
I did not find the technical drawing with the manufacturer's measurements. To use the spokes calculator
can anybody help me? My Rim has 595 mm ERD.

[final forum]

I'm very interested in these Hubs, how have they performed. I would be taking them on a large 7 day bike race and would be concerned that they ratchets would just wear out. Has anyone used the AliExpress ratchets in their DT Swiss hubs with success?

Also looking for a light 29er rim with 25mm internal if anyone have suggestions.

Cheers

[carbonazza]

...Also looking for a light 29er rim with 25mm internal if anyone have suggestions.

I took the flyweight version of this rim: https://www.lightbicycle.com/XC925-asymmetric-rim-profile-carbon-29-inch-carbon-rims-mtb.html
With the new DT-Swiss 240 and CX-ray spokes the wheelset ends at 1215g

[final forum]

What did those bad boys cost you. The rims that is, what kind of XC riding are you doing? I'm pretty aggressive but only 64kg .

Cheers

[ryapad]

https://btlos.com/mountain-bike/m-carbon-rims/32mm-width-mountain-bike-trail-bike-carbon-rims

Here is cheaper option. I ordered some stuff from BTLOS, but it hasn't arrived yet so I can't really comment, but many people seem to be very happy with theirs and the costumer service has been on point.

[carbonazza]

What did those bad boys cost you. The rims that is, what kind of XC riding are you doing? I'm pretty aggressive but only 64kg

I didn't ask the pricing split per item.
In total $995 + $155 of XDB shipping.
There was a small discount I think as we ordered 3 wheelsets together.

This is for hard XC riding at 67kg.
I plan to do the Swiss Epic with them next summer, and will put them under heavy testing till there.

[final forum]

Right before I hit buy now, I am curious about the center lock rotor only option for the boosted hubs. You loose all the weight savings on this hub by going to a heavier center lock rotor.
For the life of me I can't find any center lock rotors even close to the 6 screw.

Can someone point me in the right direction here. I dont want to add an adapter either.

Cheers

[bxcc]

That depends on the brand of rotor you are going with. If your stick with Shimano XT or XTR rotors, the CL option is lighter than the 6 bolt version. However, if you're comparing to the weight of something like the Alligator Windcutter, there is nothing in the CL option that is in that weight range.

[final forum]

So I ordered these Hubs with Beam 30mm rims and DT Swiss spokes. I'll keep you guys updated

[acedeuce802]

I've got some built up with i25 SpeedSafe Ultralight rims.  Final weight of 1340g without tape or valves.  I've been happy with the engagement and sound over about 250 miles.  I'll give an update when they have a ton of miles on them or if anything happens.  Not much to comment on other than high perceived quality and machining work.

[carbonazza]

Anyone saw a road or gravel version of these hubs?

[adriaanm]

Did you see the M2 hubs? ZTTO M2 MTB Straightpull Hub Ultralight 28 Hole 54T Ratchet HG XD Micro spline Core fit 12 speed Thru Axle QR 28h Bicycle Hub https://www.aliexpress.com/item/4000330007842.html

[carbonazza]

Did you see the M2 hubs?

I didn't know them, thank you for the information.

But aren't there some freehub differences between road and MTB ?
I remember vaguely once, planning to swap some and had troubles.
And the front is in general 12x100mm instead of 15mm for road.

[cst_jpr]

I didn't know them, thank you for the information.

But aren't there some freehub differences between road and MTB ?
I remember vaguely once, planning to swap some and had troubles.
And the front is in general 12x100mm instead of 15mm for road.

Front hub comes with 15x100 and 9x100
Rear hub comes with 10x135 and 12x142

Some info on freehubs here: https://bicycles.stackexchange.com/questions/64079/11spd-shimano-road-mtb-compatibility widths can be different (1.85mm difference, you can get a spacer). Ztto state it works with SRAM PG1130 11 speed. So seems it would work with 10 speed road cassettes but not 11 speed. They do say they have an 11 speed road body available:
"if you need road bike 11speed HG or CP hub body, please contact us and mark on your order."

One user has posted a photo of what they *guessed* were the numbers for M2: https://ae01.alicdn.com/kf/U1db41a811ea74b729a057e86e4ee02bf3.png
Its close to a DT350SP, but still ~2mm less.. so hard to tell if its dimensional clone. I wish they just posted the proper measurements.

Some similar hubs, doesn't have full dimension, looks similar to ZTTO: https://www.aliexpress.com/item/4000960257550.html and they claim compatability with some DT parts.