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3 Feb 2022
Alpinestars Nucleon KR-2I Back Insert - Black
CE approved Level 2 back insert for Alpinestars jackets and suits
DetailsBest Seller
in Motorcycle Body Armour
This product has been discontinued and is no longer available for sale.
Verified Customer Reviews for Alpinestars Nucleon KR-2I Back Insert
Great back protector
03 June 2024 by Aaron M
Bought the Alpinestars Nucleon KR-2I Back Insert - Black for my new Alpinestars jacket. Great quality and fast shipping. Flexible compared to previous back protectors that I have had.
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Very Pleased
30 April 2024 by Anonymous
Excellent service from Customer support. Really superb. Item was received very promptly and once in situ fits well. Only concern is, even though ii is the large version, it could still be several inches longer to provide greater protection for the lower back/spine area
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Great bit of kit
24 April 2024 by Tim W
Fits snugly in pocket on jacket, sturdy and didn't notice it was there once I was riding
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Perfect fit
22 April 2024 by Paul B
First class service from sportsbikeshop, as always they keep you updated every step of the way
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Great product!
11 March 2024 by Niki
Excellent service once again from sportsbikeshop. Exactly what I needed in stock and super fast delivery.
Back protector is really comfy in the jacket.
The only downside to it is that it's quite short.. if you needed full back cover I'd probably go for a separate protector.
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Nice back protector
11 March 2024 by Anonymous
Was a slightly tight fit getting the size M back protector into my size M Alpinestars jacket but managed after a couple of minutes. Once in you almost never notice it's there unless you press your back against something. Would be ideal if it was a little longer at the bottom to cover more lower spine but for a relatively cheap insert it's great
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Great back protector
28 February 2024 by Anonymous
Lightweight, flexible, really nice fit. I would recommend.
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Back protector
18 February 2024 by James T
Perfect fit for jacket..nice bit of kit.. usual Sportsbikeshop service...
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Feels sturdy
11 February 2024 by Harry F
It fits perfectly into my alpine stars jacket. It doesn't feel noticeable while wearing. It feels solid.
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Just the job
17 January 2024 by Christopher
Nice product. Would be good if included with the jacket but never mind. Fits nicely and can hardly be felt once worn
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Back Protector
12 January 2024 by Anonymous
Great fit and the sizing was spot on. As always fast and hassle free delivery from sportsbikeshop.
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Alpinestars back protector
12 December 2023 by Alison H
Fitted into jacket snuggly hopefully mould into shape of back after a couple of ride outs. Really top quality piece of kit.
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Back protection
11 December 2023 by Robin W
Excellent bit of kit as always fantastic service from sporstbikeshop
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Back protector
09 December 2023 by Bill S
Bought the medium and it fits perfectly in the Andes V3 medium jacket.
Excellent service as usual from SBS
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Alpinestars Nucleon KR-2I Back Insert
08 December 2023 by David H
I bought the Alpinestars Nucleon KR-2I Back Insert for my Alpinestars Andes V3 Drystar Textile Jacket as extra protection, it just slots into the compartment in the back of the jacket, a simple installation and fits great. Many thanks again, sportsbikeshop for another great product.
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Compliments Alpinestars Andes jacket perfectly
05 December 2023 by Bill
I bought this to slot into my Alpinestars V3 Andes jacket. Now I don't feel guilty for not wearing my full-size Knox back plate if I'm out for a more relaxed ride. A good price too, as always from Sportsbikeshop.
I really wish that these were standard in the jackets, why do the manufacturers value shoulders and elbows over backbones?
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Comfortable Protection
28 November 2023 by Andrew O
Fits the jacket easily (Alpinestars Solano) and feels comfortable - you hardly notice its there.
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Proper back protector
24 November 2023 by M D
lightweight but more substantial than the one that came with my ktm jacket. fitted well, don't know you have it on when riding.
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Description
The latest in back protection inserts from Alpinestars is the Nucleon KR-2i soft back protector insert. Suitable for all Alpinestars jackets or suits that feature a back protector pocket. It's design conforms to the latest back protector standards with it's Level 2 CE-certification (EN1621-:2014). The 'Nucleon' back protector's design has been ergonomically profiled for an optimised fit, whilst the lightweight design and flexibility with incorporated airflow system helps to keep the wearer both cool and comfortable. This highly protective back protector is quick and convenient to insert and offers the perfect fit for the ultimate in safety performance.
Back protector compatibility chart
Manufacturer
Alpinestars Nucleon KR-2I Back Insert - Black
| Option | Maximum height | Maximum width |
|---|---|---|
| Small | 38.5cm | 22.5cm |
| Medium | 42.0cm | 24.5cm |
| Large | 44.5cm | 26.5cm |
The latest in back protection inserts from Alpinestars is the Nucleon KR-2i soft back protector insert. Suitable for all Alpinestars jackets or suits that feature a back protector pocket. It's design conforms to the latest back protector standards with it's Level 2 CE-certification (EN1621-:2014). The 'Nucleon' back protector's design has been ergonomically profiled for an optimised fit, whilst the lightweight design and flexibility with incorporated airflow system helps to keep the wearer both cool and comfortable. This highly protective back protector is quick and convenient to insert and offers the perfect fit for the ultimate in safety performance.
Back protector compatibility chart
- Level 2 CE approved
- Lightweight, Flexible Design
- PU Injected Impact Foam
- Ergonomically Designed Profile
- Perforated For Breathability & Comfort
- Channel Ventilation System For Optimised Airflow
Questions and Answers
What size protector is needed for an Alpinestars Andes 3 jacket in large?
March 8, 2023Alpinestars recommends a size large insert for your jacket.
I have an Alpinestars Newman Overshirt - L. What size back protector should I order?
February 20, 2023According to the compatibility chart you will need the Large protector in this instance.
I have a 3XL Alpinestars T-Jaws Jacket which size back protector will be required? Thanks
February 6, 2023According to the compatibility chart you will need the Large protector in this instance.
What size do i need 2 fit 4x drystar jacket
March 16, 2020You will require size Large.
I have just received an Alpinestar Ares goretex jacket 2xl what back proctor will fit this jacket? Many thanks.
December 13, 2018A 2XL jacket requires the large Nucleon back protector.
Hi I have purchased an Alpinestar Jaws Leather Jacket off yourselves recently- size 42 chest. I'm 6ft 3" and slim. Jacket is snug but good fit. Which size would you recommend re. the back protector?
September 6, 2018We would recommend the medium back protector.
Hi, looking at purchasing the Alpinestar GP plus R v2 size 46 U.K. Q1 is this the best back protector? Q2 what size for the 46?
April 25, 2018This is the Level 2 CE approved back insert that Alpinestars recommend. If you were to purchase an Alpinestars Jacket in a UK size 46, you require the Large insert.
I have an Alpinestars Motegi Leather Jacket size EU56. Which size do I need as the compatibility chart isnt clear if they are using the Euro or product size?
August 14, 2017You will need a size large for your jacket
I have an Atem one Piece suit 3 years old.It has no pocket for a back protector just the press stud fixings. How is the Nucleon held in place as there are no reciprocal stud fittings shown on the photos of the protector ?
January 26, 2017This product is only suitable for all Alpinestars jackets or suits that feature a back protector pocket.
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