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Nucleon Kr-Cell Protector


SKU 6504018-013-XS
UPC 8021506941903
Color: Smoke black/red
Availability: In stock and ready to be shipped

A light and flexible back protector that fits seamlessly under an outer garment, the Nucleon KR-Cell Protector offers excellent protection thanks to its innovative protective panels that incorporate an ergonomic design that follows the contour of the rider's back. The Nucleon range of road protection includes a great anatomical fit and comfort. Made with innovative protective plates that are lightweight and incorporate a blend of high performance polymers for protection.

• Back plate of new structure made in a mixture Of high performance polymer materials for optimum flexibility and excellent weight savings.
• The outer layers are highly perforated for maximum breathability and ventilation.

• Back protector CE certified EN 162 2:2014 LEVEL 1.
• Compatible with the Nucleon KR protector.
• Compatible with the Nucleon KR-TB.

• New head layer made in a one-time injected grid structure with ergonomic design that absorbs Impacts and allows for maximum breathability and airflow.
• Quilted chassis in soft fluted bio-foam for maximum comfort and ventilation.
• Ergonomic protection plate follows the natural curve of the back ensuring optimum adjustment while riding.
• Channels Horizontal adapters offer an adaptable fit in different pilot positions.
• Adjustable and removable elastic straps with quick-fit system to allow more comfortable use of the protector.
• The strap incorporates a dual hook-and-loop closure system to keep the protection close to the body.
• Back protector made from three shoulders to waist to cover all body sizes.


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Orders usually ship within one business day if the order is placed before 11am Pacific time.

Estimated delivery time is 1-5 days. Shipping companies do not guarantee a delivery timeframe. 

Orders over $149 qualify for FREE shipping. All other orders are shipped at a flat rate of $9.99.

For consumer protection, all orders are subject to review. On occasion, this may extend the processing time of your order. For questions regarding order, please call – (US) 1-800-409-0903 / (INT) +1-310-891-0222 / Email:


We are currently only able to ship to addresses within the United States of America. Please contact your local Alpinestars distributor for details of your closest dealer.

Refused Shipments: If you refuse shipment of your order, you will be responsible for the original shipping costs, as well as any cost associated with the refusal.