Alpinestars Nucleon KR-1 Back Protector Black/White

Click to see 3 more pictures
$169.95 $147.01
(You save $22.94)

Customer Service

  • 888.784.4327
  • Monday-Friday
  • 10am to 6pm EST
  • Saturday
  • Closed
  • Free Domestic Shipping for Orders over $99Any domestic order (lower 48 United States) over $99.00 ships for free! If your item isn't over $99 but your total cart value is, you'll qualify for free shipping as well! For more information on our Shipping Policies, click here.
  • Hassle Free Returns No Restocking FeesHere at STG we want any return or exchange to be quick and pain-free. You can contact anyone here to expedite your return or exchange and we'll make sure it's handled ASAP. For more information on our policies, click here.
  • Price Match GuaranteeFind a better price? If you have we will match it! Call us at 888.784.4327 or submit a request here and our team will make it happen. *Some exclusions may apply.

Frequently Bought Together

Please choose Options for all selected Products

  • Choose Options

The NUCLEON KR-1 hybrid back protector incorporates race-oriented back protection CE certified. Level 2 to the latest back protector standard revision (EN1621-2:2014).


  • Hard-shell vertebrae protection and high energy absorbing viscoelastic memory foam, this innovative hybrid back protector is uncompromising in safety and performance.
  • Ergonomically profiled for sport riding with superb ventilation and a special waist adjustment belt for a customized fit the NUCLEON KR-1 is extremely lightweight and breathable.

Alpinestars Nucleon Back Protector Size Chart

Alpinestars Nucleon Back Protector Size Chart