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Alpinestars S-M3 Radium Adult MX Helmet
Alpinestars S-M3 Radium Adult MX Helmet
Alpinestars S-M3 Radium Adult MX Helmet
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Alpinestars S-M3 Radium Adult MX Helmet

Marsoni M251S
Sale price$179.95
Pay 4 payments of $44.99 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Alpinestars S-M3 Radium Adult MX HelmetEngineered for MX, Enduro and off road riding, the SM3 Helmet integrates advanced technologies and innovations designed to enhance ease of use, comfort and impact protection. Features: Advanced Shell Construction: This helmet features a thermo injected shell incorporating a special polymer blend enhanced by varying degrees of thickness that is engineered to deliver the optimal combination of impact protection and lightweight. The SM3 medium weighs
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Your Alpinestars S-M3 Radium Adult MX Helmet orders ship within 1-2 business days.

Delivery Options:

  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 851 reviews
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K
Verified Purchase
Kelli
Natrona Heights, US
★★★★★ 5
Replacement parts
Number of Items: 1, Style: X10 Pro Omni Accessories Kit
Comes with a lot of extra items for a great price. They look and seem to work nearly identical to the original pieces. The vacuum bags fit just a tad bit more snug than the original one but they still work. Will last a long time!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 15, 2026
K
Verified Purchase
Kat C.
West Palm Beach, US
★★★★★ 5
Perfect!
Number of Items: 15, Style: L60 / L50 Accessories Kit
Have used some of these, great fit and good value. They are easy to install and durable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 3, 2026
S
Verified Purchase
Shawn
Omaha, US
★★★★★ 5
Why go OEM for this?
Number of Items: 1, Style: Omin C20 Accessories Kit
so much cheaper than OEM but works just the same
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 17, 2026
P
Verified Purchase
Pao
Massapequa, US
★★★★★ 4
Muy buen producto
Number of Items: 15, Style: L60 / L50 Accessories Kit
Hoy cambié todo! por ahora funciona muy bien! muy alegre con la compra
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 10, 2025
A
Verified Purchase
Amy Mc
Chelsea, US
★★★★★ 5
Great maintenance kit!
Number of Items: 1, Style: X10 Pro Omni Accessories Kit
You have to take care of your vacc for it to work properly. This set gives you e writhing you need.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 29, 2025

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