Newbie, do i need 50' or 60' rope?

Just learned to board this weekend, was using 75' rope that we use for tubing...with the handle it is 75'. I plan on buying a static 50' or 60'. which one would be best for a beginner?

Im gonna also have my wife slow down some, sometimes she was pulling me at 30+mph...that felt a little hairy.

Rope length depends on the wake your boat makes.
I have a Tige Switch V and at 20mph my son uses a 55’ rope. (He is learning how to jump w2w so he likes the shorter rope)
This puts him about 8’ behind the center point of the wake.

When I ski (tandem ski) at 26mph I am just behind the center point (where the two wakes start) so need to use a 65’ to 75’ rope.

You will notice that the wake will change in both size and length as the speed of the boat changes.

I have read that you should bring your boat up to speed, and let out you rope until it hits the spot you want to wakeboard at. There is no magic #.
Hope this didn’t make to many more question for you

David

i ride behind a sanger V210 and i started on like a 50 or 55' line. now im riding a 65' line at 19 mph. i can jump w2w on my heelside but not on my toeside but im working on it

I would start at 60 ft, and about 21 mph or so. That's a pretty safe bet I would think. Like David mentioned above, it does depend on your wake and what it's like at certain speeds.