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Alpinestars RK-1 Plasma Knee Brace, Motorcycle Knee Protection, Black and Red, side profile view featuring the articulated four-point hinge system, triple segmented knee cup, and adjustable straps for off-road racing
3.5 | 19 reviews

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Rk-1 Plasma Knee Braces

motocross | body protectors

€259,95
Color:Black Red

RK-1 User Guide: Click here

Size:

Size guide
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Description

Built for motocross and off-road riding, the Rk-1 Plasma Knee Braces deliver lightweight knee support and impact protection, with ventilated Nucleon PLASMA protection that supports airflow and flexes with movement on the bike.

Key Features

• This brace provides optimal structural integrity and support while being ultra-lightweight and adaptive, and thus reduces the risk of sustaining injuries to the medial and lateral collateral ligament, the anterior and posterior cruciate ligament, and the lateral and medial meniscus.
• The replaceable triple segmented knee cups are constructed with a polyurethane outer shell backed with a Nucleon PLASMA protector for the optimum blend of impact protection, flexibility, and scratch resistance.
• The self-centering knee cup and the strategically positioned upper and lower patella extensions ensure maximum coverage regardless of the flexion or extension angles.
• The extremely stable, slim-design four-point hinge system perfectly follows the articulation of the knee while the extension stops, which are available in a range from 0 to 30 degrees, assist in setting the brace to the desired maximum opening angle.
• The stainless-steel bushings in the four-point hinge system have an anti-oxidation treatment.

Protection

Nucleon PLASMA Knee Protector (EN 1621-1:2012) - CE Level 1

Construction

Hybrid frame construction
The Nucleon PLASMA knee protector is encased in a hybrid frame constructed from a flexible composite over-injected on a high-performance polymer blend, providing superb frame rigidity while retaining flexibility at the upper and lower strap areas.

Nucleon PLASMA protector construction
The Nucleon PLASMA element is constructed from a bio-based viscoelastic impact-absorbing compound containing no less than 25% bio-based content and molded into a precision-engineered geometry. The PLASMA material dissipates impact energy and significantly reduces transmitted forces through controlled material response, while the low-profile PLASMA geometry compresses and extends with movement and supports airflow through its channeled, highly perforated design.

Replaceable triple-segmented knee cups
The replaceable triple-segmented knee cups are constructed with a polyurethane outer shell backed with a Nucleon PLASMA protector for an optimum blend of impact protection, flexibility, and scratch resistance.

Replaceable thermoformed padding
Soft-touch thermoformed padding ensures the highest levels of rider comfort while keeping the knee brace securely in position and is replaceable as a spare part.

Replaceable condyle padding
Soft-touch thermoformed condyle padding is available in different thicknesses for a customized fit and is replaceable as a spare part.

Non-slip-backed straps
Four individual straps are backed with a non-slip material to keep the knee brace securely in position while riding.

High tensile strength buckles
The high tensile strength buckles are robust while remaining flexible for easy strapping and adaptivity. The central buckles lock easily into the closed position using a keyhole snapping system, and the inner-knee central buckles are mounted inside the frames to avoid contact with the bike.

SKU 8059347428239 EAN 6501725-13-S/M
Alpinestars Nucleon Plasma protector, Black and Red impact armor for MTB and motorcycle with a wavy textured surface.
Alpinestars Nucleon Plasma Protector Insert, Red Honeycomb MTB Armor, Breathable CE Certified Protection for Mountain Biking.

Protection

Innovative impact absorbing protection that is elastic, forgiving, and moves with the natural movement of the body

Alpinestars Nucleon Plasma Protector, Red Perforated Flexible Armor for MTB Impact Protection and Breathability.

Breathability

The innovative structural design allows the protector to be slim and to have a high level of breathability, as well as flexibility, due to the high percentage of perforation attributed to the "M" shaped design.

Alpinestars Nucleon Plasma Protection, Black and Red Honeycomb MTB Impact Armor, Breathable Technical Material

Comfort

The inner side of certain protectors are laminated with a smooth fabric which provides a soft and comfortable feeling. The fabric adds durability and prevents possible tearing of the viscoelastic material.

Alpinestars Nucleon Plasma MTB protection, red and black flexible impact-absorbing armor for mountain biking performance.

Adaptive

The compound, combined with the 3D engineered structure, provides a very flexible and adaptive platform. The "M-shaped" structural design maximizes the area of protection while at the same time provides superior adaptivity.

Alpinestars Nucleon Plasma Protector, MTB High-Performance Impact Absorption, Red, Zig-Zag Structure Detail.

Impact Performance

The combination of this structure and material results in a protector that is equally protective at any given point of the structure, while at the same time, is also flexible in any direction.

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