"Agree with the above re overall maximum kart weight. Check your class.Never heard of anyone putting 32 kg weight on kart. Helped mate put 20kg lead on his kart. Put it 35% at front & 65% at rear. Get cheap scales (4) & put 1 under each wheel…"
"You are only allowed to fix lead to the frame and the seat, but that's an awful lot of lead. You need to check the maximum kart weight for your class before you put it all on. If you exceed the limit, you can't race it anyway."