https://ministrycycles.com/pages/zahn

North American source if anyone is interested.

Excuse my poor picture with ugly bottles, ugly temporary light setup, and chimney stack, but I've gotten a couple hundred KMs in on my LTK-266 now.

Build details:
Size S, transparent green paint
DFS 45mm wheels 25/32mm profile
11 speed dura ace di2
DFS carbon CT1 cranks
Stone chainrings 50/34
Chaser rotors
Boutique bike store(??) 360mm aliexpress handlebars
Uno kalloy stem
Adapter spacer from AProto bikes (ty @Sakizashi)
FSA ACR LS headset
LFZ pedals
Goldix 3d printed saddle
Vittoria Corsa pro 32 tires


Ordering from LTK with Alisa was very speedy and smooth, same with Angler for the DFS parts. Frame is almost perfect and was very easy to build up. Only issue I had was the rear mounts were not evenly faced so I had to add some tinfoil shims. But I guess it could also have been the brake adapter. Other than that the frame is perfect, paint looks great, all the weights were as advertised. Extremely light with not that expensive parts, bathroom scale has it around 6.4kg with pedals. Riding has been a big upgrade over my previous bike, a velobuild 099. Definitely stiffer, especially the fork, but with the 32c tires it is very comfortable to ride. Headset and cockpit were a breeze to setup with the di2 and adapter spacer. I was in a rush to get it built for a charity ride so I still need to trim the fork steerer and decide on a stem length. I ordered 3 different stem sizes since swapping them out is so easy with non internal routing.

Overall super happy with it. Insane value, total cost was a bit over 4k cad. Admittedly I got crazy deal on the used groupset from a dentist, but I would've spent the same for 105di2 and just been a few hundred grams heavier. The DFS wheels are very impressive too, 946g for the set.

seven six

I still want to see a closer look at his headset setup and which C ring he is using. If that's not the problem, then it does look like there might be something wrong with the bike itself. If so, it will be interesting to see what will happen if he tries to get in contact with Spcycle or AliExpress.

It's a relatively long video and he still hasn't done much to actually diagnose the problem. Surely he could have taken the fork out to inspect it, he could have measured the head tube with some calipers to see if it is out of spec, he could have examined his headset bearings, etc.

After some armchair watching I would also agree that it's potentially a c-ring problem. Or at least that's what I would check next. On my velobuild 099 the first version c-rings were slightly too short, and this allowed the c-ring to ride up the steerer tube slightly and no longer fully locate the steerer in the bearing.  This allowed the fork steerer to move way more than it should and flex about. I think I saw the headset cover gap changing when he was sprinting on the bike.  https://imgur.com/a/ra9TKWU



My eventual solution was a big (and then slightly smaller with the v2 c-ring) stack of microspacers on top of the c-ring. I used mechanical 105 so there was a big inflexible bunch of hoses/housing pushing around the c-ring. I also bought and tried a longer expander plug and it did nothing without the spacers. However, no empirical evidence, but the longer expander plug has way more surface area and must provide way more grip, which would be less chance of slipping, and better at sandwhiching everything all together.

Received my DFS order the other day. Talked with Angler Wang on whatsapp, very good communication. Prices might change, all in usd, but I paid 899 for the wheels, 404 for the crankset+spider+chainrings, 150 for the axels, and 85 for shipping to Canada. Then he gave me an special order now price of 1500usd for everything 

Ordered Jan 14, it was shipped out Jan 30, and I received them Feb 11. Ordered their 'ultralight' wheelset with carbon spokes, 25/32 profile, and 45mm depth. The CT1 crankset + carbon spider + chainrings (just passquest rings), and the dfs carbon axels. Will not have a chance to ride anything outdoors for another few months but initial impressions are very positive! Wheelset is incredibly light at 948g. Mocked up on the frame in the stand and they all seem perfectly trued. The CT1 cranks were the slightly budget option and look great, still very light as well.

https://imgur.com/a/tU5mOt4

I also ditched the supercaz copies. With gloves they're ok, but without they just fall apart super quickly. Tried the real version and it's like an entirely different product, so much better. But also 10x the cost haha.

What chain rings are people running? This crankset looks great, but adding a spider adds a lot of weight. Ends up being not that much lighter then ultegra for much more.

That's insane, almost bordering on "too good to be true" territory. Let us know how it feels when you take it out for a ride. Crazy how Aliexpress is becoming such a compelling alternative to many bike shop parts...

I'm almost tempted to get a pair myself because they're stupid expensive as a fellow Canadian.

Did about 40km in the shoes as a first ride, felt great! Maybe stiffer than the one size too big rc1 I was using previously. But that could just be placebo. Upside is they're white and look fancy, although slightly less white already haha.