The 10kg/20kg rule has been about for some time and if you are in the middle of the weight ranges it works well
But if you are at the bottom of the range or the top it can be confusing a couple of examples
Some one who weighs 50kg ---- 10kg is 20% of their weight and 20kg is 40% of their weight
Some one who weighs 100kg ---10kg is 10% of their weight and 20kg is 20% of their weight
So either the max a light person should go up is 10kg or the 100kg fit athlete needs a set at 140kg which we all know would be unbendable
I know several people who are light and use stilts 30kg above their weight and are very good on them
It really does depend on the person and fitness level and if you are unsure get along to a gym meet and try some
I jump about 5-10kg over my weight and can bottom my stilts but I can still do most tricks and have attempted a flip on the odd occasion (unsuccessfully
)
I find them comfy and easy to use
I know people want springs to last forever but that is no use if you can't jump with them
So at your weight I would ask people that are a similar weight what they use and how advanced and fit they are
Also be honest with yourself about your fitness if you can beat the bus to the next stop and still be able to stand and talk
you are fairly fit
If you can't talk after running up 4 flights of stairs flat out your not fit (like me
)
At your weight though I would recommend 70's as in theory they can vary right up to 79kg
But you may be a super fit freerunner and I could be wrong
Jason