Can't you see the pivot on rear end? That's correct! Steel is flexible and allows go without pivot. WE CALL IT FLEX-STAY, THE SEATPOST BENDS WHEN SUSPENSION IS RELEASED. It saves grams and do frame more simple.
Progressive suspension is always good and saves your ass in mountains.
The rutina is the only one that offers two bottles on downtube from Zoceli catalog.
LOWER PART looks like a rocker arm but this CNC machined part is part of chainstay and rear end.



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