The new version of the cloture rule requiring three-fifths (60%) rather than two-thirds (66.7%) approval, which has remained in place since 1975, makes it considerably easier for the Senate majority to invoke cloture. Even so, a successful cloture motion on legislation is uncommon.
Nothing there about 51 votes for cloture. Posting links that don't support your claim is a classic troll trick. This is now the second time you've done that. You're a troll.
Ok, then how many votes does it take to end debate then?
And how do you proceed to a final vote without ending a debate?