Alpinestars Nucleon KR-3 Back Protector XL 6504718-13-XL in Black and Red

The Alpinestars Nucleon KR-3 Back Protector is engineered to provide comprehensive protection and comfort for riders of all sizes. Developed with three waist-to-shoulder dimensions, this back protector accommodates a wide range of body types, ensuring a snug and secure fit. The high-performance polymeric lattice structure shell combines flexibility with lightweight design, offering excellent impact absorption while maintaining minimal weight for prolonged comfort. Soft viscoelastic polyurethane foam (PU) compounds are integrated into the shell to further enhance impact resistance, especially in critical areas such as the central spine region where Nucleon PU foam adds an extra layer of protection. The ergonomic single-injected lattice shell features impact-absorbing properties and is designed to promote maximum airflow and breathability, reducing rider fatigue during extended use. An innovative convex design on the hard shell provides superior spinal protection, absorbing shocks more efficiently in the event of a fall or collision. Horizontal flex grooves allow the back protector to adapt seamlessly to various riding positions, offering a personalized fit that moves naturally with the rider. Adjustable rib protectors made from high-performance polymeric materials provide additional side impact protection, while shoulder blade padding extensions guard the acromion bones from injury. The waist adjustment system ensures a customized and secure fit, essential for optimal protection and comfort. The slim, vented kidney belt adds stability and can be tailored to the rider’s preference, enhancing overall ergonomics. Detachable elastic shoulder straps, secured via a snap-fit system, facilitate quick adjustments for a comfortable and secure fit. Designed to be compatible with the Nucleon KR-C and Nucleon KR-TB protectors, this back protector integrates seamlessly into existing safety gear setups, making it a versatile choice for serious riders. Lightweight at approximately 18 pounds, the Alpinestars Nucleon KR-3 offers a balance of protection, airflow, and adjustability, making it ideal for demanding riding conditions and extended use.

Features:

• Developed in three waist-to-shoulder dimensions to fit all body sizes

• Lattice structure back shell crafted from high-performance polymeric blend for flexibility and weight savings

• Impact-absorbing viscoelastic PU foam compounds integrated into the design

• Single injected lattice shell with ergonomic shape for maximum airflow and impact protection

• Impact-absorbing Nucleon PU foam in the central spine area for enhanced safety

• Convex design on the hard shell provides superior spinal protection

• Horizontal flex grooves for adaptive fit in various riding positions

• Adjustable rib protector made from high-performance polymeric materials for side impact protection

• Shoulder blade padding extensions to protect the acromion bones

• Adjustable waist system for a personalized fit

• Slim, vented kidney belt for added stability and comfort

• Detachable elastic shoulder straps with snap-fit system for easy adjustments

• Compatible with Nucleon KR-C and Nucleon KR-TB protectors

ATTRIBUTES:

BRAND: ALPINESTARS

MPN: 6504718-13-XL