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Alpinestars Nucleon KR-R Race Back Protector


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Alpinestars Nucleon KR-R Hybrid Back Protector

Ergonomically profiled the Alpinestars Nucleon KR-R Hybrid Back Protector is an innovative track and race back protection system CE certified Level 2 to the latest back protector standard revision and incorporating a multi-compound construction for excellent performance fit.


  • Waist adjustment for customized fit
  • Snap-on system to fix protector to a suit or jacket
  • Slim vented kidney belt for added security

Sizing Info:

Waist to Shoulder Length (in)  KR-R Protector Size
16 XS
17.25 SM
18.5 MD
20 LG
21 XL

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Product Style Item # Store SKU Manufacturer Product # Availability
XS 1012250 6505015-125-XS Out of Stock
SM 1012251 754076 6505015-125-S In Stock: Ships within 24 hours
MD 1012252 754077 6505015-125-M In Stock: Ships within 24 hours
LG 1012253 754078 6505015-125-L In Stock: Ships within 24 hours
XL 1012254 754079 6505015-125-XL Available: Requires 1-3 business days of lead time prior to shipment