Exxentric kBar (ultralight pulling bar)
The Exxentric kBar is an essential accessory to any flywheel device. It is comfortable, versatile, durable, light and also aesthetical

£ 146,05

including 19% VAT , free shipping


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The Exxentric kBar is an essential accessory to any flywheel device. It is comfortable, versatile, durable, light and also aesthetical.

The kBar weighs only 600 grams (1.3 lb), avoiding wasting unnecessary energy on defying gravity like with a heavy iron grip. This transfers more energy into the flywheel for use in the eccentric phase. Despite being lightweight, it measures 58 cm in length, and manages loads of up to at least 300 kg (almost 700 lbs). It also includes rotating connection for smooth motions.

Its coating is designed to be highly comfortable, and top quality materials are selected for optimal durability.

The kBar is perfect for many different exercises, including straight-arm lifts, deadlifts, high pull and row. It is a typical accessory to any kBox system, but it can be used also for traditional weight training. No matter what exercises you do, flywheel or not, this will be the best bar you ever tried.

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Physical Principles

  • With flywheel training (also known as isoinertial or yoyo) instead of lifting a weight against gravity, you accelerate or decelerate a flywheel. This way, the force required in each motion is variable as it is based on the inertia and the kinetic energy of the flywheel. Read more.

Physiological Advantages

  • Flywheel training offers many advantages over traditional strength training. The resistance is variable and unlimited. Eccentric overload can easily be achieved as well as mobility, ergonomy and economy. Read more.

Scientific Evidence

  • Multiple academic studies have provided support for flywheel training in recent years. We present a selection of some of the more important studies in the field. Read more.

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It could be a regular deadlift or stiff-legged deadlift. The experience of the eccentric phase in the #kBoxDeadlift will be new for most people. A nice exercise for lower back and hamstrings. Read more or watch video. #kBoxDeadlift

High pull
Can be a total body workout on the kBox thanks to the variable resistance and eccentric overload. Kick in with the legs and the eccentric phase will kick you back. Works deltoids, trapezius and arms in the regular setting and most of your upper body and core in the CLAC overload setting . Watch Video. #kBoxHighPull

Biceps curl
With the Exxentric ultra light bar, this will be your new favorite exercise. Forget giving the biceps 12 sets in the gym. The kBox will do the work in 3 maximal sets with eccentric overload. Read more or watch video. #kBoxBicepsCurl

Triceps extension / over-head press
Slow and heavy with high force development with some core strength added. Perfect for a basic exercise to build strength and power in more complex exercises. Watch video. #kBoxTricepsExtension

Bent-over row
After a couple of sets of rowing with eccentric overload you won't be able to go back to the traditional weights. It is a heavy exercise but still with a lot of power and motion, especially in the eccentric phase. It strengthens upper and lower back, shoulders and arms. Read more or watch video. #kBoxRow


Target Groups: Athlete
Applications: Fitness Pro Sports
Product Type: Accessory

Datasheet kBar_EN

K4Box User Manual_EN