Today, after a 30km ride, I decided to deeply clean my Sunn Vertik² bike… And it needed it! I let you see the bike before:

… and after:

I disassembled almost everything to clean it deeply with thinner, then put some oil on each moving part, and reassemble the whole stuff together. I had some difficulties to put the chain together again, even with the appropriate tool… but it is worth the pain! It’s shining and working perfectly!