With two quick searched i found that the size 55 Kilo has a stand over of 812.8mm. Now armed with that information that any reasonable person should be able to get on their own, I would assume that you could figure it out. But since you created a post about it, rather than figuring it out on your own I will lay this all out very simple for you.
The standover on the TK-3 is a little more than 1 inch lower than on your kilo. Or this much:
