Well that's a real question, how much more expensive is it against Ltwoo, for reference I'm in France, and I can have a 105 DI2 for around 800€, considering it's a full group, with cranks, cassette, chain. Ltwoo on the other hand, offers fewer parts, and still 530€ for an ER9 V3 or 630€ for eRX, how much cheaper is it in reality? And in your opinion what are the pros and cons for each ones ?