---
product_id: 260270090
title: "Nucleon KR-Celli Back Protector"
brand: "alpinestars"
price: "A$206"
currency: AUD
in_stock: true
url: https://www.desertcart.com.au/products/260270090-nucleon-kr-celli-back-protector
store_origin: AU
region: Australia
---

# Lightweight polymer honeycomb design Ventilated airflow channels CE Level 1 certified impact absorption Nucleon KR-Celli Back Protector

**Brand:** alpinestars
**Price:** A$206
**Availability:** ✅ In Stock

## Summary

> 🛡️ Ride Smart, Stay Cool, Look Unstoppable

## Quick Answers

- **What is this?** Nucleon KR-Celli Back Protector by alpinestars
- **How much does it cost?** A$206 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/260270090-nucleon-kr-celli-back-protector)

## Best For

- alpinestars enthusiasts

## Why This Product

- Trusted alpinestars brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Featherlight Armor:** Ultra-light polymer construction with honeycomb micro-structure keeps you agile without bulk.
- • **Freedom of Movement:** Ergonomic, flexible design adapts seamlessly to your body for all-day comfort and unrestricted mobility.
- • **Seamless Integration:** Compatible with select Alpinestars jackets and suits for effortless upgrade and stylish protection.
- • **Breathe Easy, Ride Hard:** Strategic ventilation channels ensure continuous airflow, preventing overheating during intense rides.
- • **Certified Safety, No Compromise:** CE Level 1 certification guarantees top-tier impact protection for peace of mind on every ride.

## Overview

The Alpinestars Nucleon KR-Celli Back Protector is a CE Level 1 certified, lightweight polymer back protector featuring a honeycomb design for optimized airflow and impact absorption. Its ergonomic, flexible structure adapts to rider movement, providing superior comfort and ventilation. Designed for seamless integration with Alpinestars gear, it offers professional-grade protection without compromising style or mobility.

## Description

Nucleon KR-Celli Back Protector

## Features

- Advanced back protection with CE Level 1 certification ensures reliable impact absorption and rider safety on every ride.
- Constructed from lightweight polymeric material with a honeycomb design for optimized airflow and reduced weight.
- Ergonomic, flexible structure adapts to rider movement, providing all-day comfort without restricting mobility.
- Strategic ventilation channels promote constant air circulation, keeping riders cool during demanding conditions.
- Compatible with select Alpinestars jackets and suits, offering easy integration and versatile protection upgrade.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item dimensions L x W x H | 20 x 20 x 20 centimeters |
| Age range (description) | Adult |
| Closure type | Pull-On |
| Strap type | Adjustable |
| Manufacturer | Alpinestars |
| Color | Transparent Smoke |
| Size | L |
| Style | Motorcycle |
| Team | Alpinestars |
| Material Composition | 60% Polyurethane, 38% Polyester, 2% Other |
| Height | 10 centimeters |
| Length | 10 centimeters |
| Width | 10 centimeters |
| Material Type | Polymer composite material |
| Number of Items | 1 |
| Season | long term standard |
| Features | Back protector insert |
| Included Components | Protectors |
| Batteries Included? | No |
| Department | unisex |
| Item model number | 6503919-L |
| Product Dimensions | 20 x 20 x 20 cm; 300 g |
| ASIN | B07FRJXMKS |

## Product Details

- **Colour:** Transparent Smoke
- **Brand:** Alpinestars
- **Material:** Polymer composite material
- **Sport:** Motorcycling
- **Item weight:** 0.3 Kilograms

## Images

![Nucleon KR-Celli Back Protector - Image 1](https://m.media-amazon.com/images/I/71cnL-uR3wL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: my current back pad is 15.25" x 11.5".  what size do i order?**
A: I have the same dimension and large is way too big to fit in the back slot.  Vertically, this item in a Large is 17 inches

**Q: What size should i buy for an alpinestars faster airflow leather jacket size 50 (euro size)?**
A: Buy Large. 
👍🏻

**Q: I did not find its size, can you tell me the size of the large, medium and small? I don't know how to choose**
A: Size	        Height	Width
Small	15	        8.75
Medium	16.75	9.5
Large	17.75	10

**Q: why dont they list the size (dimensions) instead of the package size?   Seriously??**
A: Probably  Because it comes in a small plastic bag that fits it really tight

## Frequently Bought Together

- Alpinestars Adult Motorcycling Back Protector, Black
- Quad Lock Motorcycle Vibration Dampener for Smartphones
- Alpinestars SMX-1 Air V2 Gloves, Short Cuff Fit, Leather and Mesh Construction, CE-Certified, Ergonomic Protection, Summer Riding Glove, L, Black/Yellow Fluorescent

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**Shop now:** [https://www.desertcart.com.au/products/260270090-nucleon-kr-celli-back-protector](https://www.desertcart.com.au/products/260270090-nucleon-kr-celli-back-protector)

---

*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-01*