To read more about our new generation barbells and to pre-order visit: kabukistrength.com/power-bar-... kabukistrength.com/chris-duffi... / chrisduffinstrong / mad_scientist_duffin / kabukistrength
I feel like I am sitting in my Mechanical Engineering Class ( which was actually 10 yrs ago) and all of this makes perfect sense now.. Holy coowww.. Practicality makes soo much difference.
No other powerlifters out there ever get around to the technical aspects of the equipment and it is possibly one of the most important parts of optimising your lifts.
Being an iron worker the last 20 years I have an extensive knowledge of tensil in steel. We are now moving in the direction of stainless steel and kryogenic. I could see a kryogenic bar making its way into your manufacturing for the strength, tensil, and longevity. Of course it comes at a high price
I'm already sold on your bars quality, the duffalo bar we have is awesome. I want a bar that has less whip for when you bring a big raw bench down fast, definitely gonna be the next bar I buy.
I appreciate this video, just a couple comments. The "oscillations" you mentioned theoretically may or may not be related directly to tensile strength and/or Rockwell hardness. In the simplest sense (ignoring geometrical effects), it is related to the first-order damping coefficient. This coefficient, in metals, is related to material effects, such as friction between grain boundaries. As a note: Rockwell hardness is really only a very simple indicator of indentation resistance of metals.
Seems like a solid Bar..Texas Power Bars is what we use at our gym and they let me down, the knurling wore down on a (LIFE FITNESS SIGNATURE SERIES OLYMPIC FLAT BENCH) with urethane protection.
Great stuff from a warrior with a massive brain to match his lifts. HA. Love my ShouldeRok and appreciate the tour of the gym and taking time to explain some of your programming back in 11/16. I'm 52, getting stronger and more shredded thanks to you.
Great video! I would love to see how your testing results prove the differentiation between the bars' section modulus and the deflection limits. Also would also love to see how Olympic barbells would compare to say your power bar or proper power bar considering they have a similar moment arm. I tell lifters that Olympic barbells can be outright dangerous if you are doing a max squat or bench press as they are designed to whip and assist a weightlifter with recovery from a low squat or jerk position.
Did you mean Desert Storm? Because that was early 90s. I think you may have meant something more recent. Also C-17s are pretty sweet they are park right next to my C-130s over here in Kuwait. C-130s are the greatest planes in the USAF!
Do you have any idea what shipping will be like to Australia? I'm going to be getting a new power bar soon (currently have a Rogue Ohio but need another) and would love to get one of yours, so many companies are just too expensive for me to ship out though, Elite FTS wanted about $900 to ship a $600 bar (AUD not USD).
Martensite? Bainite? From watching the abrasion test, I would guess Martensite, but I have always thought that martempering would make for a very durable bar.
As an engineer, I approve this message. Will consider the bar for my next home gym. Question - we know the knurl will last, but how aggressive (deep) is the knurl compared to other bars?
Oh shit, that was my major... before a I changed to healthcare ... I still daydream about building stuff and doodle random designs ... bar looks awesome btw
a dedicated "deadlift bar" usually is longer and has a thinner diameter to allow it to bend more. this bar is not designed to bend more than average. so, no, this isn't a dedicated DEADLIFT bar, but it can be and is used for deadlifts in powerlifting competitions.
