Diameter of the rubber trans cooling line

[Riba]

Hello all,

My transmission oil cooling lines are both leaking where the flexible part meets the rigid one. The local dealer does not have them in stock and on top of that they are overcharging. International shipping is not an option due to bulkiness. After taking a closer look I realized I should just do the repair myself using a new hose and oetiker clamps and save a bunch of $$$.

As this is our daily ride I would like to do it in one go and not get stuck because the replacement hose I have is not a good fit - hence my question: can anyone confirm the outer and inner diameter of the rubber oil coolant hose?

Thanks a ton!