i thought about this have a barbell or a dumbell bar with extra weight for hitting the tyre, no weight on one side, the grip side. its still a metal object hitting the tyre but with the possibilty of a lot more weight. Sledgehammers which are "Limited to 16lbs weight", so i thought id solve this problem. thoughts?
Go get a 16lb sledge. Do 3x2min on the tire and then come back to us asking for more weight. Besides, the weights would come off the bar while you swing it.
but it just wouldn't come off, those clips are meant to hold a ridicolous amount of weight, it might come slightly loose after 20 reps but you just keep tightening it. anyway imagine hammering with 35kg, the explosive power you'd develop, unbelievable.
have you tried this? barbells are pretty long, id imagine it would be very awkward swinging it. as well, with it being longer the leverage is greater, youd probably end up hurting your shoulders or your wrist if your not careful.
they arent meant to hold it against centrifugal force and gravity. And yeah imagine hammering with 70lb. The power you'd develop: none. You can't accelerate the weight fast enough.
Your solving a problem that doesn't exist, firstly you can get hammers that are more than 16lbs, and secondly 16lbs is more than enough. At 35kgs you will not be able to maintain the fast and intense pace for long enough to get the benefits of this type of training. You do not use heavy loads to develop the strength quality that sledgehammer training is meant to develop. The principal method of developing speed strength is with light loads.
its a conditioning tool, not primarily a strength tool, the way you said it would be far too heavy for the purposes of repeatedly producing powerful movements, a 16lb sledgehammer for 100 reps per arm is a tremendous conditioner, 16lbs is pretty heavy after a short while. A barbell or dumbell are better used in other exercises. It doesn't have to be a metal object, it can be a baseball bat, so that isn't a factor.