Alpinestars Nucleon KR-Ci Chest Protector Inserts
- Easy-to-use divided chest protector inserts (sold as a pair)
- Certified to prEN 1621-3:2013
- Highly ventilated and very lightweight, the ergonomically designed protectors are excellent for everyday riding
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Sizing Information
Choose the chest protector size based upon the size of your jacket as follows:
For Men’s Alpha Sized Jackets: Choose size XS/Small to fit jacket sizes Medium and below. Choose size Medium/Large/XL to fit jacket sizes Large or above.
For Men’s Euro Sized Jackets: Choose size XS/Small to fit jacket sizes 50 and below. Choose size Medium/Large/XL to fit jacket sizes 52 or above.
Our Two Cents
Introduced in 2015, as part of the new Nucleon line of chest and back protectors, these KR-Ci Chest Protector Inserts are made to fit into Alpinestars jackets and suits that have chest protector pockets for armor. These chest pads offer CE Level 1 protection. In order to receive CE Level 2 a chest protector must be a single piece.
The KR-Ci is the replacement for the Bionic chest pads. And these new chest pads are “backward compatible” with older Alpinestars jackets or suits that were advertised as being able to accept Bionic chest pads.
For reference, here are some overall dimensions of the two sizes:
XS/Small: 8.25” x 5.25”
Med/Large/XL: 10” x 6.25”
