Hey there, i'm sorry in advance for all my grammatical mistakes, not a native speaker.
So, i'm really obsessed with trek madone, but because i'm living in country where the official minimum salary is 80$, i was started to looking at rip off framesets, but i couldn't find any review or information whatsoever. I haven't bought it yet, i'm on the path of making investigation about it's quality and reliability.
1) Let's begin with seller investigation, i've found three main sellers on Aliexpress that sells this frame:
Taiwan Eisen
https://www.aliexpress.ru/store/5257218Rocking Cyling store
https://www.aliexpress.ru/store/2189015 (one of the forum members bought Emonda frame from them:
https://chinertown.com/index.php/topic,4029.msg42719.html#msg42719And Taobao store:
https://item.taobao.com/item.htm?id=694413006667So, i think there are several manufacturers, at least two, and there a few reason for that, the first one is the frame weight difference is tremendous, 16750 (eisen) and 2045 (taobao), which is huge difference, the second one is that Taobao store have 2023 replica of Madone already, but eisen is planning to release their in April.
2) Frame photos, i collected all the photos from Aliexpress sellers:
Eisen:
https://ibb.co/album/LYjQkzRocking:
https://ibb.co/album/xXdb8dSo, what i learned is that these pictures are low quality, so it's really hard to judge the quality of the frame, i asked sellers to send me high resolution photos, haven't received them yet. But, here are close shots that i already have (all photos from rocking store, waiting photos from eisen, taobao seller didn't want to send high res photos):
BB:
https://ibb.co/xMkN9BB https://ibb.co/g7BMn5r https://ibb.co/NjWBXQfHandlebar:
https://ibb.co/9nJFprd https://ibb.co/R3BvkcZ So, in conclusion, quality is very similar to what Hambini reviewed, Chinarello replica, it has similar problems with BB and some slight imperfection on the stem, but not bad overall.
3) IsoSpeed, many have concerns regarding it, but i made some research, and it's actually a fairly simple mechanism, my most worried part was damper, i thought it was kind of precise and hard to manufacture thing, but in reality it's just a button with (what seems) elastomer:
https://ibb.co/MDhYcV5, which is also mentioned on Trek page:
https://www.trekbikes.com/us/en_US/inside_trek/isospeed/, so i don't think it's that hard to replicate.
4) Carbon fiber, they claim that they use T1000 CF, i asked them is this a Toray, but haven't received the reply yet.
5) If something breaks by your fault, you can buy replacement parts from seller at least Eisen confirmed that you can.
If there will be more information, i will try to share it with you.