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Columbus
My Store
Open Today At 10am
3635 West Broad Street
Columbus, Ohio 43228
614-869-3115
What’s going on at Cycle Gear
Services
Experienced staff support available on site
Store Events
Meet the local riding community for Bike Nights & more
Shop the Store
Find out what’s in stock and ready to go
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Alpinestars Nucleon KR-3 Back Protector

Rib, kidney, shoulder and back protection, all in the Alpinestars Nucleon KR-3 Back Protector. Certified to CE Level 2, the KR3 has adjustable and removable shoulder straps.

Features:

  • 3 waist-to-shoulder dimensions in order to cover all body sizes
  • Lattice-structured back shell plate constructed from a high performance polymeric material blend for optimized flexibility and excellent weight-saving properties
  • Soft viscoelastic PU foam compound
  • Ergonomic design design to absorb high impacts and allow maximum breathability and air flow
  • Nucleon PU foam on the central spine for extraordinary impact absorption performance
  • Convex central hard shell provides highest protection for the spine
  • Horizontal flex grooves for adaptive fit in all riding positions
  • Adjustable rib protector constructed of high performance polymeric material blend for additional side protection
  • Shoulder blade protective padding extensions protect the acromion bone
  • Waist adjustment for customized fit
  • Slim vented kidney belt for added position stability and security
  • Adjustable, detachable elastic shoulder straps
  • Compatible with the Alpinestars Nucleon KR-C Chest Protectors (sold separately)
  • Compatible with the Alpinestars Nucleon KR-TB Protector (sold separately)
  • CE certified to EN 1621-2:2014 Level 2
Read More
Product Style Item # Store SKU Manufacturer Product # Availability
Product Style Black/Red / XS Item # 1242702 Store SKU Manufacturer Product # 6504718-013-XS Availability In Stock: Ships within 24 hours
Product Style Black/Red / SM Item # 1242703 Store SKU 439177 Manufacturer Product # 6504718-013-S Availability In Stock: Ships next business day
Product Style Black/Red / MD Item # 1242704 Store SKU Manufacturer Product # 6504718-013-M Availability In Stock: Ships within 24 hours
Product Style Black/Red / LG Item # 1242705 Store SKU Manufacturer Product # 6504718-013-L Availability In Stock: Ships within 24 hours
Product Style Black/Red / XL Item # 1242706 Store SKU 439178 Manufacturer Product # 6504718-013-XL Availability In Stock: Ships within 24 hours
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