Hi guys.
Regarding the cases where the bicycle subframe had broken: This issue is very rear (about 1%). It's probably a combination of very long seat post, riding style - commuting (always placing full weight on the seat on the bumps ) and the terrain. But nonetheless, our frames have a 2 year warranty, and in all cases the (y. 2014) subframes were/will be replaced. Our latest design is extra reinforced in that particular area.
If you have any kind of issue, please send us an email to info@qulbix.com, and we'll sort it out asap.
Have a nice day,
Ziva
p.s. ziltoid81, I've send you a PM regarding your case.