Barton Tz 125 '15. Replacing the head after the exhaust valve broke off. The head purchased from gmoto fit without a problem, made without glaring imperfections, decent for cheap Chinese parts. However, it is definitely lighter than the original head - probably a less solid casting. Threads for exhaust pins m6 vs m8 in the original one. In any case, it fits, works, looks aesthetically pleasing.
The head installed in a Romeet ZXT-125.The product exemplary workmanship and fit. It is mandatory to reach the valves with valve paste because their tightness raised concerns. I recommend this head because it is really worth it.