As low as $59.58/mo with or . (Pay in 4 interest-free payments)
ALPINESTARS Nucleon KR-3 Back Protector (Small) – Black/Red Street-ready protection with motocross-level impact management, the ALPINESTARS Nucleon KR-3 Back Protector is engineered to help safeguard your spine and shoulders with a lightweight, breathable design. Built for riders who want a secure, adaptive fit across changing riding positions. Key Features Made in three waist-to-shoulder dimensions to cover all body sizes for a comfortable, secure feel. Single-injected lattice structure back shell uses a high-performance polymeric blend for flexibility and weight savings. Soft viscoelastic PU foam construction works with the shell for impact absorption. Nucleon PU foam centrally on the spine adds extra impact absorption performance. Additional convex hard-shell design targets maximum spinal area protection. Horizontal flex grooves for adaptive fit in all riding positions. Adjustable rib protector for added side protection. Shoulder blade padding extensions help protect the acromion bones. Waist adjustment plus a slim, vented kidney belt for position stability. Adjustable, detachable elastic shoulder straps with snap-fit system. Compatible with Nucleon KR-C and Nucleon KR-TB protectors. Specifications Brand/Model: ALPINESTARS Nucleon KR-3 Type: Back Protector Size: S (Small) Riding Style: Street, Off-Road, ATV, UTV, Adventure Touring / Dual-Sport Base Color: Black/Red Material: Polyurethane Foam Weight: 2.67 lbs Dimensions: 24.88" x 10.2" x 3.54"
Developed in three waist-to-shoulder dimensions in order to cover all body sizes
Lattice structure back shell plate is constructed from a high-performance polymeric material blend for optimized flexibility and excellent weight-saving properties combined with soft viscoelastic PU (polyurethane) foam compound construction
Single injected lattice structure shell with an ergonomic design to absorb impacts and allow maximum breathability and airflow
Nucleon PU foam on the central spine area for additional impact absorption performance
Additional convex design on the central hard shell provides the highest level of protection for the spinal area
Horizontal flex grooves for an adaptive fit in all riding positions
Adjustable rib protector made with high-performance polymeric material blend for additional side protection
Shoulder blade protective padding extensions to guard the acromion bones
Waist adjustment for a customized fit
Slim, vented kidney belt for added position stability and a custom fit
Adjustable, detachable elastic shoulder straps via snap-fit system for a comfortable fit
Compatible with the Nucleon KR-C and Nucleon KR-TB protectors
or 
. (Pay in 4 interest-free payments)
