Lim came out 4-of-9 from the three-point land to end up with 12 points, but it was more of a collective effort for the Red Lions which boosted them back to the top of the standings at 7-2.
Newcomers Ola Adeogun and Art Dela Cruz scattered 10 points apiece for San Beda, which piled on to the lead over the undermanned Letran to as wide as 25 points.
Jake Pascual, who chipped in five markers, made it 63-38 on an and-one play with 2:25 left in the game though it was all Red Lions from the get-go.
Jam Cortes was the lone Knight to gather double digit points while main man Kevin Alas only had six measly points as Letran succumbs to another loss for a 4-5 record.