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Alpinestars Nucleon KR 2i Back Protector

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Alpinestars Nucleon KR 2i Back Protector

Product description Alpinestars Nucleon KR 2i Back Protector

The NUCLEON KR-2i soft back protector is quick and convenient to insert and fit unobtrusively within a riders jacket or suit for the ultimate in comfort and safety protection.


- NUCLEON KR-2i Back Protector Insert is CE certified Level 2 (EN1621-2:2014)
- Lightweight, flexible PU injected impact foam
- Contoured for anatomical and adaptive fit
- Perforated for breathability and comfort
- Channel ventilation system for optimized airflow

In addition, Alpinestars Nucleon KR 2i Back Protector in the Protections category from your online motorcycle store, you can find other products related with Body protections. If you are interested in buying other products from the brand Alpinestars, at motardinn, you will find a big variety in motorcycle products that can also interest you. Alpinestars is focused on innovation and improving the motorcycle experience for both beginner and advanced level while maintaining low prices.

Features Alpinestars Nucleon KR 2i Back Protector

Product Type

Customer reviews and questions (13)

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(existing customers only)

Great back protector


As always, a great back protector from Alpinestars



Can Alpinestars T-GP Plus R V3 Air M size be combined?!

our experts answer

Hello, yes, they can be combined. Regards

A brand a guarantee!


Nothing to say, AlpineStars is a guarantee! Purchased for AlpineStars jackets (winter and summer) to be moved according to the jacket to be worn.

Alpinestars nucleon kr-2i


Compatible with the Dainese TEmpest 2 D Dry jacket despite, in my expectations, covering the back more in length. The protection is soft and very comfortable

Good protection


Buy it to complement the back safety of an alpinestars Andes V2 Drystar jacket. It is a bit heavy and quite stiff, but I think it will perfectly fulfill its mission in the event of an accident.



Good afternoon, Is this protection compatible with the Jaws V3 fur coat? Thanks

our experts answer

Hello, this backpack is compatible with Alpinestars Jaws V3. Regards.

Comfortable and discreet


Fits perfectly into the required location inside the jacket to protect the upper back. Does not take up space, does not interfere, lets itself be forgotten. I recommend.

Ideal Back Protector for Alpinestars Gunner Jacket Size L


Hi, I have an Alpinestars Gunner Waterproof Jacket Size L. Should this armour of size L would fit in the back spine protector insert? Please let me know.

our experts answer

Hello, this armour will fit on an Alpinestars Gunner Waterproof jacket. Regards.

Alpinestars Nucleon kr-2i


ordering was easy, shipping updates were prompt ,and simple to track. very happy with the product and fits exactly as described. will definitely order from motardinn again! great service and keep up the good work!

Very good


It's softer than Dainese

Super product


Very good description ... exactly fits my jacket ...

What protection choose?


Hi. I have a monkey Alpinestar Orbite, that protection could or should be inserted into the jacket monkey. (Light model) Thanks

our experts answer

Hello! the compatible one it is: https://www.motardinn.com/motorcycle-equipment/alpinestars-nucleon-kr-r-back-protector-level-2/13559278/p The attachment is through snap buttons. Thanks!

Size backpack


hello what size should be taken in order to insert it in a backpack ALPINESTAR AVN?

our experts answer

Hello, this protection is used to insert in a jacket and not backpack. Cdlt

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