Sport is good
Other Sports
Clearance
Brands
Customer service in France Securized payment 4x Free of charge Easy returns

Added to the cart !

Cart subtotal

View my cart
Alpinestars

Motorcycle knee protector RK-1 Plasma

Discover optimal protection for your knees with the knee guard Alpinestars RK-1 Plasma, designed for exceptional comfort during your motocross adventures.

Starting at
$305.14 $296.98
Description +
  • Anatomically profiled for all off-road riding styles, the knee protection RK-1 Plasma is designed to provide comfortable knee support while remaining lightweight, breathable, and protective.
  • This knee protection includes a Nucleon Plasma knee guard embedded in an innovative hybrid frame construction, made of a flexible composite over-moulded onto a blend of high-performance polymers to provide exceptional rigidity while remaining flexible at the upper and lower straps.
  • Key features
  • This protection offers structural integrity and optimal support while being ultra-lightweight and adaptable, thus reducing the risk of injuries to the medial and lateral collateral ligaments, the anterior and posterior cruciate ligaments, as well as the lateral and medial meniscus.
  • The replaceable three-part knee cups are built with an outer polyurethane shell supported by a Nucleon Plasma guard for an optimal blend of impact protection, flexibility, and scratch resistance.
  • The self-centering knee cup and strategically placed upper and lower patella extensions ensure maximum coverage, regardless of the angle of flex or extension.
  • The stable and slim four-point hinge design follows the knee joint while extension stops, available from 0° to 30°, help adjust the protection to the desired maximum opening angle.
  • The stainless steel rings in the four-point hinge system have anti-oxidation treatment.
  • The Nucleon Plasma is a viscoelastic material made from bio-based polymers and formed into a flexible structure in all directions while maintaining the ability to dissipate impact energies.
  • Lightweight and highly ventilated, the knee protection offers strong dispersion and absorption of impact forces while ensuring maximum coverage in all riding positions.
  • Construction
  • This knee protection includes a Nucleon Plasma knee guard embedded in an innovative hybrid frame construction, made of a flexible composite over-moulded onto a blend of high-performance polymers to provide exceptional rigidity while remaining flexible at the upper and lower straps.
  • The replaceable three-part knee cups are built with an outer polyurethane shell supported by a Nucleon Plasma guard for an optimal blend of impact protection, flexibility, and scratch resistance.
  • Constructed from eco-friendly and durable impact-absorbing material based on bio-polymers.
  • The high-strength buckles are robust while remaining flexible for easy adjustment and adaptability.
  • The soft thermoformed padding ensures the highest levels of comfort for the rider while keeping the knee protection securely in place.
  • Equipped with four individual straps supported by a non-slip material to ensure that the knee protection stays securely in place during riding.
  • The soft thermoformed padding at the condyles is available in different thicknesses for a custom fit.
  • The central buckles easily lock into the closed position thanks to a keyhole locking system.
Additional information +
BrandAlpinestars
Colorblack/red
ColorBlack
GenderMixed
Age groupAdult

Select a size

Size
*

Select options