Alpinestars Nucleon KR-3 Protector - Black / Red

Level 2 CE approved strap-on back protector with side rib protectors

Details
£194.74
RRP £204.99

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Verified Customer Reviews for Alpinestars Nucleon KR-3 Protector

4.9
12 reviews
Like a reassuring protective cuddle for your back
05 September 2023 by Matt S
I tried this against two other protectors from Knox and Forcefield, utilising Sportsbikeshop's excellent delivery and return service and found this one worked the best for me in terms of comfort/reassurance. Feels like a very high quality item and gives some extra peace of mind on the bike. I have been able to fit it under my existing single piece leather jackets which were not 'sized up' to accommodate additional back protection.
Peering through the comfort mesh liner to the armour you can also see that the level 2 protection has passed the optional cold temperature tests. You can further enhance the item by adding a tailbone protector via Velcro to the bottom of the protector (which I've not yet done). Or turn the protector into a vest by adding in the KR-C chest protector, which is what I've done to mine very easily. I know I'm wearing back protection with this on but I have not found it to get uncomfortable or hot.
At 5,8 and average build I was somewhere in the middle of the small/medium size. Although they share the same length back protector I found the medium to have a more comfortable range of waist band adjustment.
An excellent product that I'll not go on the road without.
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Alpinestar kr--3 back protector
02 July 2022 by Arron
A good back protector, only bought while I wait for my made to measure back protector from Impact Armor to arrive from the states.

The good.
Light, removable shoulder straps, kidney protection, breathable so not too sweaty.

The bad
No coxix protection, there is an additional velcro add on but it's not the same as having a proper tail to the back protector.
No scapula protection, seems to be common issue with most modern back protectors. I broke my scapula at Cadwell and I always want protection.

All that said, I think it's the bast of the bunch, not too thick, but good spine protection. Will keep as a spare once my replacement one from impact armor turns up.
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Great back protector
14 June 2022 by Erika-jane S
I previously had a Forcefield Pro but after 8 years of use felt it was time for an upgrade. I was attracted to this one because of the rib protection & I love it. Very comfortable & well worth the investment. Being Alpinestars, construction & materials are excellent quality & it looks very cool too. Highly recommended.
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More than a Back Protector
25 January 2022 by Adam J
The coverage offered by this product goes way beyond a standard back protector. The hip protectors can be moved by repositioning the waist belt as well as being slid along the belt to cover exactly where you need them. The whole unit is well made and comfortable to wear.
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Wrap around protection
25 June 2020 by CJS
Quite simply and amazing product at an amazing price. No rider should be without one. Great spine coverage from nape to waist. The rib protector design is so simple and so effective. It's flexible, comfortable and can be worn under any jacket due to the braces design. I quite simply won't be without it as it provides so much confidence.
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Excellent product
27 April 2020 by Stephen R
Excellent fit
Brilliant service
Just need to be able to try on the road once lockdown all done
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Very good
15 March 2020 by Damian W
Very good back protector and as usual great service and quick delivery from sportsbikeshop , Great service
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Excellent Product
10 December 2019 by William F
After researching a range of different back protectors, I decided on the KR-3. It was not a disappointment. The fit is good and it is very comfortable. The back protector looks robust and of good quality. The only slight niggle is how the chest straps attach. It is the only area of the back protector that looks a little cheap.
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Protection is good.
16 June 2019 by O H
Good product, good protection and very confortable.
Delivery was also perfect.
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Great product
04 June 2019 by James F
Great protection
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Money well spent.
17 June 2018 by Anonymous
Great bit of kit, comfy when racing even in this warmer weather we are having. Not the cheepest but the only one I could find with kidney protection and pierce protection on spin.
Also great service from Sportbikeshop as usuaul.
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Brilliant confidence builder
16 May 2018 by Harvey B
I brought this back protector along with the KR-C chest protector. I would highly recommend this to anyone, fits like a glove, gives me a lot more confidence when corning hard and trying to knee drag. Best back protector I've ever worn, looks great and feels solid like it was made to last. Haven't crashed in it yet so don't know how it holds up it the department but I'm pretty confident it would protect me as designed.
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Description

Alpinestars Nucleon KR-3 Protector - Black / Red

  • Back protector is CE certified level 2
  • Hard shell back plate constructed from polymeric material blend for flexibility
  • Viscoelastic PU foam compound
  • Triple layer convex design allows breathability with maximum spine protection
  • Side protection with adjustable rib protectors
  • Shoulder blade padding for acromion bone protection
  • Waist adjustment strap for customised fit
  • Slim vented kidney belt for additional security
  • Adjustable and detachable elastic shoulder straps with snap fit system

Rider HeightProtector LengthProtector Size
164cm - 182cm
56cm
Small
164cm - 182cm
56cm
Medium
182cm - 194cm
60cm
Large
182cm - 194cm
60cm
Extra Large

Manufacturer
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