The ALPINESTARS Nucleon KR-3 Back Protector is designed in a medium size with a lattice structure back shell that combines flexibility, impact absorption and airflow. Its single-injected shell uses a high-performance polymeric material blend with soft viscoelastic polyurethane foam construction for weight-saving performance and comfortable protection. The ergonomic design helps absorb impacts while allowing maximum breathability in riding positions.
A Nucleon polyurethane foam section on the central spine provides additional impact absorption, while the convex central hard-shell design delivers enhanced protection for the spinal area. Horizontal flex grooves support an adaptive fit across riding positions. The adjustable rib protector adds side protection, and shoulder blade padding extensions help guard the acromion bones.
The protector includes waist adjustment for a customized fit, along with a slim, vented kidney belt for added position stability. Adjustable, detachable elastic shoulder straps use a snap-fit system for comfortable positioning. The ALPINESTARS Nucleon KR-3 is compatible with Nucleon KR-C and Nucleon KR-TB protectors. Manufacturer part number: 6504718-13-M. Vendor part number: 6504718-13-M.
Features:
- Size: Medium
- Color: Black/Red
- Lattice structure back shell constructed from a high-performance polymeric material blend
- Soft viscoelastic polyurethane foam compound construction
- Ergonomic shell design for impact absorption and airflow
- Nucleon polyurethane foam on the central spine area for additional impact absorption
- Convex central hard-shell design for spinal-area protection
- Horizontal flex grooves for an adaptive fit in riding positions
- Adjustable rib protector for additional side protection
- Shoulder blade protective padding extensions for acromion coverage
- Adjustable waist and slim, vented kidney belt for customized fit and position stability
- Adjustable, detachable elastic shoulder straps with snap-fit system
- Compatible with Nucleon KR-C and Nucleon KR-TB protectors