I have been struggling to index gears properly. Even on single gear adjustment the chain will not shift as smoothly as I would want on some parts of cassette. I'm using Chinese 12 speed cassette named JSHOUBIKE. (I got it because I really like that it has single teeth transitions starting from 17T). Has anyone of you changed cassette to genuine shimano and noticed improved shifting? As of now my old Sora 9 speed that was even routed internally had better shifting.

Hello. I just received L-twoo er7 groupset and I'm having some issue. I think the battery holder is dead in my unit. When I put 2 fully charged 14500 batteries into the battery box and plug the cables to the front and rear derailleur the led on the derailleur is not flashing during plugging and I cannot finish the pairing process. When I click on rear derailleur function button nothing happens. I sent a message to the seller and I'm still waiting for the reply. Had anyone got similar issue? On the side note when I put Cr2032 batteries into the shifters their light blinks when pressing buttons like they should.

What was the total weight of your build?

8,9kg - Sora groupset, Tanke semi-hydraulic brakes (heavy, but have strong stopping power), one bottle cage

Looks great Adrian - would you mind letting me know your own dimesions(!) - height, etc - looking at a 58 and wondering how it sizes up in practice.

188cm, 89cm inseam. Was riding Triban RC500 XL size before. Both bikes are on bikeinsights.com so it was easy to compare geometry of those bikes.