We have updated our Privacy Policy. Please click here to review the updates.Accept

Looking for something else?

Alpinestars Nucleon KR-1 Cell Back Protector

Fast Lane


This item is available as a Blem/Refurb. These are items that cannot be sold as "New" merchandise and are limited to stock on hand. See the product details for a description of the product's condition.

Ships Free to Cycle Gear Stores!

Ship to an Address:
Please select a to view availability.


Pick-up in Store:
Cycle Gear Pacheco Check Nearby Stores

The Cycle Gear Difference
  • 30-Day Best Price Guaranteed
  • Free Shipping Over $49
  • No-Hassle ReturnsView Details

Alpinestars Nucleon KR1 Cell Back Protector

The Alpinestars Nucleon KR1 Cell Back Protector uses Cell Technology for a lightweight back protector with plenty of flexibility. Add the KR1 underneath your race suit or whatever gear you're running for a full coverage back protector that straps to your body.


  • Cell Technology back protector is constructed from a high performance polymeric material blend for optimized flexibility and excellent weight saving properties
  • Developed in three waist-to-shoulder dimensions in order to cover all body sizes
  • Extended lower back protector offers more protection to the rider
  • Highly perforated for maximum breathability and ventilation
  • Horizontal flexion grooves for an adaptive fit in different riding positions
  • Adjustable and detachable elastic shoulder straps via a snap fit system for greater comfort
  • Compatible with the Nucleon KR-C chest protector by removing the adjustable straps
  • Compatible with the Nucleon KR-TB tail bone protector for extended lower spine protection
  • Height adjustable kidney belt featuring dual hook and loop closure system for easy, secure closure
  • Soft Bio-Foam padded chassis for maximum comfort
  • CE certified to EN 1621-2:2014 Level 2
Read More
Product Style Item # Store SKU Manufacturer Product # Availability
Product Style Black/Red / LG Item # 1726959 Store SKU 679311 Manufacturer Product # 6504520-009-L Availability Out of Stock
Product Style Black/Red / MD Item # 1726960 Store SKU 679310 Manufacturer Product # 6504520-009-M Availability Out of Stock
Product Style Black/Red / SM Item # 1726961 Store SKU 679309 Manufacturer Product # 6504520-009-S Availability In Stock: Ships next business day
Product Style Black/Red / XL Item # 1726962 Store SKU Manufacturer Product # 6504520-009-XL Availability Out of Stock
Product Style Black/Red / XS Item # 1726963 Store SKU Manufacturer Product # 6504520-009-XS Availability Available: Ships in 3-5 business days
Join now & get rewarded!

Get free 2-day shipping and 5% cash back on your next order.

Already enrolled in RPM? Link your existing membership here.