Hi,
just 3 weeks have passed since I build it, so my experience isn't much. Still I am looking for some parts, f.e. crankset, couse I ride 1x 42t front (with 11-25 cassette).
I have comparision only to one alloy road bike which I sell a year ago (and two carbon frames but MTB - ICAN and Pro-Mance). Tantan frame seems to be well built, much comfortable than alloy for sure.
Avg speed is very similar. I don't expected much difference since it is "only" aero frame. Rest of the set isn't so aero
The stiffness is enough for my weight at 69-70kg.
I'm riding alloy wheels with rims DT RR421 with Conti GP5000 28mm tubeless tires. Front fork can manage with 32mm tire for sure, but rear triangle I think can hold even 35mm.
I had an issue with slipping seatpost, but electrical tape helped in it. I like the headtube angle, it is more like old MTB
At last without hands riding is easy. The old bike was very nervous.
This frame is 57cm long and 53cm high. I am 180 tall with 85cm inseam. The size is max I could ride. I don't like small frames. Big frame and slack (as for road bike) head angle with short stem - perfect for me.
Overall I don't regret the purchase, but contact with Tantan wasn't the best
On the occasion with frame I bought Tantan aero rims 25x55mm 24H (18,5-19 mm inner width) which are waiting for rest of parts. I heard that ZTTO is to release road disc hubs with ratchet system called R2 - info from Aliexpress Ztto shop.
Maybe it is worth waiting...