The Alpinestars Nucleon KR-1 Cell Back Protector is engineered with a high-performance polymeric material blend that offers an optimal balance of flexibility and weight savings, ensuring comfort during extended rides. Developed in three waist-to-shoulder dimensions, this back protector is designed to accommodate a wide range of body sizes, providing tailored protection for every rider. The extended lower back section enhances coverage in critical areas, delivering increased safety in the event of a fall or impact. Highly-perforated construction promotes maximum breathability and ventilation, helping riders stay cool even during intense riding sessions. Horizontal flexion grooves allow the protector to adapt seamlessly to various riding positions, offering a comfortable fit without sacrificing protection. The adjustable and detachable elastic shoulder straps utilize a snap fit system, allowing for quick adjustments and secure comfort. Additionally, the height-adjustable kidney belt features a dual hook-and-loop closure system, providing an easy and secure fit that stays in place during dynamic riding. The soft Bio-Foam chassis ensures maximum comfort by providing a cushioned interface against the rider’s back, reducing fatigue and enhancing overall wearability. Designed for riders seeking a high-quality, lightweight back protector with customizable fit and superior ventilation, the Alpinestars Nucleon KR-1 Cell Protector is a reliable choice for motorcyclists prioritizing safety and comfort.
Features:
- High-performance polymeric material blend for flexibility and weight reduction
- Three waist-to-shoulder dimensions for all body sizes
- Extended lower back protection for increased safety
- Highly-perforated design for maximum breathability and ventilation
- Horizontal flexion grooves for adaptive fit in various riding positions
- Adjustable and detachable elastic shoulder straps with snap fit system
- Height-adjustable kidney belt with dual hook-and-loop closure
- Soft Bio-Foam chassis for maximum comfort
Alpinestars Nucleon KR-1 Cell Back Protector XL – High-Performance Motorcycle Safety Gear
The Alpinestars Nucleon KR-1 Cell Back Protector is engineered with a high-performance polymeric material blend that offers an optimal balance of flexibility and weight savings, ensuring comfort during extended rides. Developed in three waist-to-shoulder dimensions, this back protector is designed to accommodate a wide range of body sizes, providing tailored protection for every rider. The extended lower back section enhances coverage in critical areas, delivering increased safety in the event of a fall or impact. Highly-perforated construction promotes maximum breathability and ventilation, helping riders stay cool even during intense riding sessions. Horizontal flexion grooves allow the protector to adapt seamlessly to various riding positions, offering a comfortable fit without sacrificing protection. The adjustable and detachable elastic shoulder straps utilize a snap fit system, allowing for quick adjustments and secure comfort. Additionally, the height-adjustable kidney belt features a dual hook-and-loop closure system, providing an easy and secure fit that stays in place during dynamic riding. The soft Bio-Foam chassis ensures maximum comfort by providing a cushioned interface against the rider’s back, reducing fatigue and enhancing overall wearability. Designed for riders seeking a high-quality, lightweight back protector with customizable fit and superior ventilation, the Alpinestars Nucleon KR-1 Cell Protector is a reliable choice for motorcyclists prioritizing safety and comfort.
Features:
- High-performance polymeric material blend for flexibility and weight reduction
- Three waist-to-shoulder dimensions for all body sizes
- Extended lower back protection for increased safety
- Highly-perforated design for maximum breathability and ventilation
- Horizontal flexion grooves for adaptive fit in various riding positions
- Adjustable and detachable elastic shoulder straps with snap fit system
- Height-adjustable kidney belt with dual hook-and-loop closure
- Soft Bio-Foam chassis for maximum comfort
ATTRIBUTES:
BRAND: ALPINESTARS
MPN: 6504520-009-XL








