- All returned items must be in brand-new, unused condition with all original packaging, tags, and accessories included. Products that have been worn, taken on a test ride, or installed on a motorcycle are not eligible for return unless they are defective and fall under the manufacturer’s warranty. Packaging must also be in like-new condition — the same way you would expect to receive it if you were buying the item yourself.
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ALPINESTARS | SKU:
Alpinestars Nucleon Flex PROi Full Back Protector Insert – Transparent Smoke/Red
$104.95 USD
Unit price
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Unavailable
Shipping calculated at checkout.
📞 Any questions? Talk to a real rider: 951-777-2661
⏰ Support Hours: Mon–Fri 10AM–5PM PST • Sat 10AM–4PM PST
FAST SHIPPING INFO
FAST SHIPPING INFO
We ship all in-stock items within 1–2 business days from the time your order is placed.
If your item is on backorder, we’ll place the order with the manufacturer and provide you with an estimated ship date via email within 2 business days.
Need it fast or want to confirm stock before ordering?
Feel free to call us at (951) 777-2688 — we’re happy to help.
RETURN & EXCHANGES
RETURN & EXCHANGES
Return & Refund Policy
Last updated: June 9, 2025
MotoFactory accepts returns on eligible items within 14 days of delivery.
To be eligible for a return, items must meet the following conditions:
- All returns are subject to a 20% restocking fee
- Return shipping is the customer’s responsibility
- We are not responsible for lost return shipments, so we recommend using a trackable service and insuring the package if needed
To initiate a return, please contact us at the link below Returns sent without prior approval may be denied.
https://www.motofactoryparts.com/pages/contact
Send Returns to :
MotoFactory
1651 Market St Suite A
Corona, CA 92878
Once your return is received and inspected, we will notify you of the approval status. If approved, your refund (minus restocking fees) will be processed to your original payment method within 3–5 business days.
Some items, such as race-use parts, electrical components, close-outs, or special orders, may be final sale. Please reach out to confirm eligibility before returning any item.
Description
Description
Alpinestars Nucleon Flex PROi Full Back Protector Insert – Transparent Smoke/Red
Designed for riders who demand uncompromising protection without sacrificing comfort, the Nucleon Flex PROi is Alpinestars’ top-tier back protector insert. Built to seamlessly integrate into compatible Alpinestars jackets and suits, it delivers CE Level 2-certified impact absorption in a flexible, lightweight form.
Featuring an advanced honeycomb design, the PROi offers optimized airflow and ergonomic contouring for all-day wear. Its low-profile structure allows for natural movement on and off the bike while maintaining critical coverage across the spine and back. The transparent smoke/red colorway adds a unique, technical edge to this race-ready insert.
Key Features:
- CE Level 2 Certified – Maximum back protection for high-impact scenarios
- Ergonomic Flex Design – Conforms to body movement for enhanced mobility
- Honeycomb Ventilation Structure – Promotes airflow for improved comfort
- Lightweight & Low Profile – Minimal bulk with maximum performance
- Jacket Integration Ready – Designed to fit select Alpinestars jackets and race suits
- Durable Thermoplastic Polymer – Resilient and impact-resistant build
- Transparent Smoke/Red Finish – Technical look with signature Alpinestars styling
Ideal for sport, track, or touring riders, the Nucleon Flex PROi combines advanced safety technology with long-ride comfort.
