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Product information

Details & specifications

ALPINESTARS Nucleon Plasma Back Protector.

  • Key Features
  • The back protector is a composite construction and has a central semi-rigid thermoplastic zone on a Nucleon Plasma Back Protector for greater impact force dispersion in a critical area
  • The Plasma M design delivers airflow and heat dissipation and the M design is replicated on the aligned, semi-rigid zone for unobstructed ventilation
  • The soft tactile backing guarantees structural integrity of the protector by preventing any potential tearing
  • Fully adjustable shoulder and fully adjustable waist straps for a customizable fit
  • The shoulder straps are removable allowing the protector to be easily and quickly converted into a race-specific version
  • Construction
  • Plasma is constructed from bio-based, eco-friendly, and sustainable impact absorbing material
  • Ultra-comfortable soft and flexible Nucleon Plasma viscoelastic compound delivers enhanced rider comfort
  • Highly breathable due to the engineered structure and the channeled inner surface that allows air circulation
  • Constructed with a soft tactile inner liner for additional rider comfort
  • The super lightweight back protector is developed in three waist-to-shoulder dimensions to cover all body sizes
  • The adjustable side straps are equipped with a V-configuration to ensure the back protector has a performance fit that follows the curvature of the spine

Available styles: 5

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Bike compatibility

Match the year, make, model and any additional restrictions. If you're unsure, confirm with us before ordering.

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An exact compatibility list isn't available here. Review the product description and contact us with your bike's year, make, model and trim before ordering.

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Before you order

Shipping & returns

Shipping rates & timing

Eligible standard U.S. orders ship free at $100+. Below $50: $19.95; $50–$99.99: $12.95. Standard transit is usually 3–5 business days after shipment. Processing and special-order timing vary. Checkout confirms the rate. Alaska, Hawaii and Puerto Rico are excluded.

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30-day return requests.

Eligible items must be unused, uninstalled and in their original condition and packaging. Request approval within 30 days of delivery. Ordinary return shipping is your responsibility; exclusions apply.

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Secure Shopify checkout.

Complete your order through Shopify. Available payment methods and any installment eligibility are shown at checkout.

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Good to know

Common questions

A few answers before you place your order.

How do I know I'm choosing the right fit?

Check the listed year, make, model and any trim restrictions. Product-level fitment information may cover several variants. If your exact bike isn't listed, ask us before ordering. Check compatibility details.

Does it include everything shown in the photos?

Use the product description and included-items list to confirm the contents. Reference photos may show optional accessories or another finish. If contents or quantities aren't specified, ask us before purchasing. See product details

When will my order arrive?

Availability is not a delivery-date guarantee. Orders may ship from Parts4Motorcycles, a distributor or the manufacturer. Standard U.S. transit is usually 3–5 business days after shipment; processing and special-order lead times are additional. Contact us if you need the item by a specific date. Email our team

Can I exchange it if I choose the wrong option?

We don't offer direct exchanges. For eligible unused items, request a return within 30 days of delivery, then place a new order for the correct option. Return approval and the policy exclusions apply. Read return policy

Added to your cart

ALPINESTARS Nucleon Plasma Back Protector
ALPINESTARS Nucleon Plasma Back Protector

Black/White/Red / XL

Qty: 1$189.95 each

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