Alpinestars Nucleon KR-3 Back Protector — Black/Red — XL · XL

• Developed in three waist-to-shoulder dimensions in order to cover all body sizes
• Lattice structure back shell plate is constructed from a high-performance polymeric material blend for optimized flexibility and excellent weight-saving properties combined with soft viscoelastic PU (polyurethane) foam compound construction
• Single injected lattice structure shell with an ergonomic design to absorb impacts and allow maximum breathability and airflow
• Nucleon PU foam on the central spine area for additional impact absorption performance
• Additional convex design on the central hard shell provides the highest level of protection for the spinal area
• Horizontal flex grooves for an adaptive fit in all riding positions
• Adjustable rib protector made with high-performance polymeric material blend for additional side protection
• Shoulder blade protective padding extensions to guard the acromion bones
• Waist adjustment for a customized fit
• Slim, vented kidney belt for added position stability and a custom fit
• Adjustable, detachable elastic shoulder straps via snap-fit system for a comfortable fit
• Compatible with the Nucleon KR-C and Nucleon KR-TB protectors

Riding Style

ATV, Off-Road, Adventure Touring / Dual-Sport, UTV, Street

Model

Nucleon KR-3

Base Color

Black

Material

Polyurethane Foam

Units

Each

Size

XL

Size Group

Adult

Type

Back

Shipping weight

2.87 lb

Package size

25.4 × 10.5 × 3.4 in

Country of origin

China

Salto part #

2702-0213

Alpinestars part #

6504718-13-XL

UPC

8021506941989

In stock at a distributor warehouse. Ships in 2–4 business days by ground.

Ground shipping is $14.95, free on orders over $150. Stock is re-checked with the warehouse before your card is charged.

Is it in stock?

Yes — the distributor shows it on a shelf at a regional warehouse right now. We check again the moment you order, before anything is charged.

How fast will it get to me?

Usually 2–4 business days by ground.

Will it fit my machine?

The distributor doesn’t publish a vehicle fitment list for this part. Call the counter at 801-361-3010 with your year, make and model and we’ll check it with you before you order.

Is this genuine Alpinestars?

Yes. It ships new from the same distributors the big online stores buy from — Alpinestars part #6504718-13-XL.