Hi guys.
Thanks for the information provided
Yesterday made a quick tour over the local motorcycle part stores: first one offered an original hose at USD35 w/10 days wait; second one another original hose at USD60 w/7 days wait; third one had none; fourth store: there found a generic hose 42" long (mine was 40") at USD22, OEM for Bajaj NS200 Rouser bike.
So re-routed the hose path in order to bring space for the 2 inches extra: perhaps there is an excessive bending at the pump end,
, I´ll see how it performs in time.
Also found a curious thing: the RX3 OEM hose has a very stiff internal white plastic pipe
(covered with a metallic braid and a thin external plastic jacket), instead of the rubber hose -more flexible- usually found at the hydraulic systems.