The starting and stopping of the rotors on the 350b2 is 50kts on the nose which reduces to 40kts from any other direction, 350b is 48kts on the nose and then reduces to 20kts on the tail.
If memory serves I think the 120 was 55kts on the nose and both types have a similiar substantiated figure of 17/18 kt in the hover.
As long as you can meet the limits for starting and stopping then it's just the normal limits i.e of not exceeding Vne.
Flown both aircraft in windy conditions and have to agree would rather be in one of them than a Jetbanger but would think carefully about a pax trip in winds close to those limits especially if the terrain is less than flat as it can soon become unpleasant even for alot of drivers let alone the customer.