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Soft yet High Protection Rating
This is a light and flexible back protector. Luckily, I have not had to test the level of protection but it gives me peace of mind at a rating of CE 2.
I purchased a medium and it fit my large jacket replacing the foam insert that came with the jacket.
November 10, 2014
Not fully tested (thank god)
I have not gotten into any accidents so this review will only cover fit and comfort. Inserted into my gp plus and then my sp1 jacket, i can not feel the protector while riding. I basically forget its there. The jacket is perf'd so air goes thru well. one thing i did notice is that when i bend it, it stays in that shape, so while your back is bending, this conforms to your shape.
no issues with this product.
can not testify as to its protection sorry
November 4, 2014
Have a functionality, fit, or otherwise product-specific question about the Alpinestars Nucleon Back Protector Insert? Ask it here!
If you have a customer service or shipping question, please direct it to our Customer Service department.
A shopper asked:I am purchasing the Alpinestars Stella Gunner WP textile jacket in a size small. Should I purchase the Alpinestars Nucleon Back Protector in small or medium? I am 5'2" and weigh 110 lbs. I am also considering purchasing the Alpinestars Bionic Chest Pad, although I'm not sure how much protection the pads really offer.
Michael S:Hi - I am also a new rider (2014 Honda CB500f). I am 5'7" and 175 pounds and where a Large Jacket because of chest size. The protector is light and semi-flexible. I got a Medium and it fit fine. I think Revzilla has a return policy so I would go for a medium if you where a Medium jacket. If you where a small jacket, then I would get a small. That is purely my guess. You should contact Revzilla; they have been great about answering questions for me.Oct 29, 2014
Robert J:At 62" tall you should get size small in the Alpinestars Nucleon Back Protector. The women's model of the Bionic Chest Pads will definitely give you more protection and is highly recommended.Oct 29, 2014
gregory k:I purchased the LG Im 6ft but my shoulder are bigger then the 20 (22) recommended. It seemed a little narrower then I expected. Putting it in the Alpine 3X Daystar ( I have a side to side gap of approximately 1"). Therefore, I think it is more dependent on the width then the length. So if you have wider shoulders I would go with the medium, if narrow I would go with the small. I'll check with my daughter who is 5'5 and see how it would fit. She just ordered a new jacket.Oct 31, 2014
Sandra F asked:I am purchasing the Alpinestars Stella Gunner WP in size small. I am 5'2" and weigh 110 lbs. Should I purchase the Alpinestars Nucleon Back Protector in size small or medium?Oct 29, 2014
Manoj K:I would measure the foam one that it came with originally and get the same size. Hi-Viz Brian gave me the actual sizes of each pad and they are: Small: 15.5"L x 9"W......Medium: 17"L x 10"W....Large: 18"L x 10.5"WOct 31, 2014