Alpinestars RK-S Knee Brace Sleeve - Black Red White - One Size

Alpinestars RK-S Knee Brace Sleeve - Black Red White - One Size

  • Adult
  • Black/Red
  • Helmets-and-Clothing
  • Helmets-and-Clothing>Protection>Legs
  • Knee Brace
  • Legs
  • One Size
  • Protection
  • RK1 Plasma
  • Tier1-Helmets-and-Clothing
  • Tier2-Protection
  • Tier3-Legs
  • Unisex
£25.00
AlpinestarsProtection Accessories
New for the 2025 season. Specifically designed to be worn with the Alpinestars range of off-road boots and knee braces, the RK-S Knee Brace Sleeve features a double layer, compact construction for high levels of stretchability and overall comfort.
Key Features
  • The RK-S Knee Brace Sleeve features a fold-over design at the top and the bottom and is engineered to be worn under a knee brace to further prevent it from slipping down while riding.
  • Constructed from wear-resistant textiles for durability.
  • Made from stretchable textiles for enhanced rider comfort.
Construction
  • Double layer and compact construction made from durable and stretchable textiles for optimal rider comfort.
  • Flat locked seams and soft-touch textile for enhanced comfort.
  • Sublimated graphics for durability.
  • Compatible with all Alpinestars knee braces.

Manufacturer Part No. (MPN): 8059347428222
Barcode: 8059347428222
Age: Adult
Colour: Black/Red
Gender: Unisex
Model: RK1 Plasma
Size: One Size
Type: Knee Brace

Price Promise

We guarantee competitive pricing across our full range of new and used bikes.

Certified Dealer

Officially authorised and trusted to supply and support leading motorcycle brands.

Extended Warranty

Added peace of mind with comprehensive warranty options available.

4.8 Google Rating

Highly rated by our customers for service, expertise, and reliability.

You Might Also Like

Discover more products from our collection

Alpinestars RK-1 Plasma Knee Brace - Black / Red

Alpinestars RK-1 Plasma Knee Brace - Black / Red

New from Alpinestars for the 2025 season. Anatomically profiled for all forms of off-road riding, the RK-1 PLASMA Knee Brace has been engineered to provide comfortable knee support while still being lightweight, breathable, and protective.The RK-1 knee brace features a Nucleon PLASMA knee protector encased in an innovative hybrid frame construction, consisting of a flexible composite over-injected on a high-performance polymer blend to offer superb frame rigidity while still being flexible at the upper and lower strap areas. 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. Nucleon PLASMA is a viscoelastic material engineered from bio-based polymers and formed into a structure that is pliable in all directions while maintaining the ability to dissipate impact energies. Lightweight and highly ventilated, the knee protector offers strong impact force dispersion and absorption while ensuring maximum coverage in all riding positions. Construction This knee brace features a Nucleon PLASMA knee protector encased in an innovative hybrid frame construction, consisting of a flexible composite over-injected on a high-performance polymer blend to offer superb frame rigidity while still being flexible at the upper and lower strap areas. 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. Constructed from USDA certified bio-based eco-friendly and sustainable impact absorbing material. Soft-touch thermoformed padding ensures the highest levels of rider comfort while keeping the knee brace securely in position. Replaceable as a spare part. Soft-touch thermoformed condyle padding comes in different thicknesses for a customized fit. Replaceable as a spare part. Equipped with four individual straps backed with a non-slip material to ensure the knee brace remains securely in position while riding. High tensile strength buckles are robust while still being flexible for easy strapping and adaptivity. Central buckles are easily locked into the closed position by a keyhole snapping system. Protection The CE-certified Level 1, RK-1 PLASMA Knee Brace provides optimal structural integrity and support while being ultra-lightweight and adaptive, and thus reduces the riders risk of sustaining injuries to the medial and lateral collateral ligament, the anterior and posterior cruciate ligament, and the lateral and medial meniscus. Constructed with a polyurethane outer shell, the replaceable triple segmented knee cups are backed with a Nucleon PLASMA protector for the optimum blend of impact protection, flexibility, and scratch resistance. According to European statutory law the CE mark is a conformity requirement for the marketing of this product. The following standards apply: Knee Protector: EN 1621-1:2012 LEVEL 1 Manufacturer Part No. (MPN): 8059347428246Barcode: 8059347428246 Age: Adult Colour: Black/Red Gender: Unisex Model: RK1 Plasma Size: L / XL Type: Knee Brace

Knee BraceAlpinestars
£240.00

In stock

Alpinestars Knee Brace Socks - Black/White

Alpinestars Knee Brace Socks - Black/White

Specifically designed to be worn with the Alpinestars range of off-road boots and knee protection, the MX Long Knee Brace Socks feature a single layer compact construction for high levels of breathability and overall comfort.The Aplinestars Knee Brace Socks have a stretch Lycra upper area that includes a mesh insert on the back of the upper leg, and an elasticated upper hem with internal silicon grip to keep the socks in place. The MX Long Knee Brace Socks provide enhanced rider comfort and fit, to MX riders that wear knee protection.Key Features Designed to be worn with the Alpinestars range of off-road boots and knee braces. Stretch Lycra upper sleeve with back mesh insert. Large elasticated upper hem with internal silicon grip. Reinforced padded support for enhanced levels of comfort. Reinforced protective padding on the ankle. Construction Rib construction for enhanced stretchability. Single layer compact construction of the lower socks has been designed for high levels of breathability and comfort. Moisture wicking construction throughout. Manufacturer Part No. (MPN): 8059347254418Barcode: 8059347254418 Age: Adult Colour: Black/White Model: Knee Brace Socks Size: L/2XL Type: Socks

Moto SocksAlpinestars
£44.99

In stock

Alpinestars Knee Brace Socks - Bright Red/White

Alpinestars Knee Brace Socks - Bright Red/White

Specifically designed to be worn with the Alpinestars range of off-road boots and knee protection, the MX Long Knee Brace Socks feature a single layer compact construction for high levels of breathability and overall comfort.The Aplinestars Knee Brace Socks have a stretch Lycra upper area that includes a mesh insert on the back of the upper leg, and an elasticated upper hem with internal silicon grip to keep the socks in place. The MX Long Knee Brace Socks provide enhanced rider comfort and fit, to MX riders that wear knee protection.Key Features Designed to be worn with the Alpinestars range of off-road boots and knee braces. Stretch Lycra upper sleeve with back mesh insert. Large elasticated upper hem with internal silicon grip. Reinforced padded support for enhanced levels of comfort. Reinforced protective padding on the ankle. Construction Rib construction for enhanced stretchability. Single layer compact construction of the lower socks has been designed for high levels of breathability and comfort. Moisture wicking construction throughout. Manufacturer Part No. (MPN): 8059347271620Barcode: 8059347271620 Age: Adult Colour: Bright Red/White Model: Knee Brace Socks Size: L/XXL Type: Socks

Moto SocksAlpinestars
£44.99

In stock

Alpinestars RK-7 Plasma Knee Brace - Black / Red

Alpinestars RK-7 Plasma Knee Brace - Black / Red

New from Alpinestars for the 2025 season. With a slim ergonomic design offering a high level of off-road performance and comfort during dynamic movement, the RK-7 PLASMA Knee Brace has been engineered to provide superior knee support.Lightweight, breathable, comfortable, and protective. This knee brace features a free-floating Nucleon PLASMA knee protector encased in an innovative asymmetric fiber reinforced frame construction for enhanced levels of rigidity. Key Features This brace provides optimal structural integrity, rigidity and comfort, 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 knee cups are constructed with a polyurethane outer shell backed with a Nucleon PLASMA Knee protector for the optimum blend of impact protection, flexibility and scratch resistance. The replaceable 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. Nucleon PLASMA is a viscoelastic material engineered from bio-based polymers and formed into a structure that is pliable in all directions while maintaining the ability to dissipate impact energies. Lightweight and highly ventilated, the knee protector offers strong impact force dispersion and absorption while ensuring maximum coverage in all riding positions. Construction The Nucleon PLASMA Knee protector is constructed from USDA certified bio-based eco-friendly and sustainable impact absorbing material. Soft-touch thermoformed padding ensures the highest levels of rider comfort while keeping the knee brace securely in position. Replaceable as a spare part. Soft-touch thermoformed condyle padding comes in different thicknesses for a customized fit. Replaceable as a spare part. Nucleon PLASMA embedded into the shin padding for additional protection. Equipped with padded X-straps backed with a non-slip material to ensure the knee brace remains securely in position while riding. X-straps are profiled to avoid pinching the back of the knee when fully flexed. High tensile strength buckles are robust while still being flexible for easy strapping and adaptivity. Upper and lower buckles are easily locked into the closed position by a keyhole snapping system. Easily exchangeable extension stops (0, 5, 10, 15, 20, 25 and 30 degrees). Replaceable (as spare parts). Protection The Ce-certified Level 1 RK-7 PLASMA Knee Brace provides optimal structural integrity, rigidity and comfort, and thus reduces the riders risk of sustaining injuries to the medial and lateral collateral ligament, the anterior and posterior cruciate ligament, and the lateral and medial meniscus. Constructed with a polyurethane outer shell, the replaceable knee cups are backed with a Nucleon PLASMA protector for the optimum blend of impact protection, flexibility and scratch resistance. According to European statutory law the CE mark is a conformity requirement for the marketing of this product. The following standards apply: Knee Protector: EN 1621-1:2012 LEVEL 1 Manufacturer Part No. (MPN): 8059347445564Barcode: 8059347445564 Age: Adult Colour: Black/Red Gender: Unisex Model: RK7 Brace Size: L Type: Knee Brace

Knee BraceAlpinestars
£400.00

In stock

What Our Customers Say

4.8 rating from our customers

About John Lee Motorcycles

John started work in the Motorcycle Trade in 1955, working for 2 large London Dealers for 10 years. His ambition was to own his own dealership, so moved to Northamptonshire and purchased the shop where we are today in Higham Ferrers, that was 1964.

Join the Club

Sign up for exclusive offers and discounts on the latest Motocross, Enduro and Electric bikes.

John Lee and Sons Motorcycles 2026. All rights reserved.
Powered By Fastrak