Alpinestars
S-M10 Side Impact Diffuser Black (0010)
Other Helmet PartsSKU AS89804240010XSM
Variant
Struck-through options are out of stock.
4 stores checked
No recent in-stock price found
Based only on in-stock prices checked in the last 30 days. Dates for every store are shown below.
Recorded store prices
Prices we recorded when we last checked each store for this exact variant.
Product details
Protect your collarbone with this genuine Alpinestars replacement part designed to absorb and diffuse impact energy where it matters most. The S-M10 Side Impact Diffuser is engineered from a flexible rubber compound that reduces the force transmitted to your shoulder and neck during side impacts, making it an essential safety upgrade for your SM10 helmet. This component works seamlessly with your existing helmet structure to maintain optimal protection without compromising comfort or fit.
Whether you're a daily commuter navigating Sydney traffic, weekend warrior hitting the twisties, or track enthusiast pushing your limits, this diffuser provides critical added protection during crucial moments. If your original diffuser has worn, cracked, or been damaged, this authentic Alpinestars replacement ensures your helmet maintains its full protective capabilities.
Price history
Recorded changes for this exact variant.
Step chart of dated store-price observations. Solid lines show confirmed crawl coverage, dashed lines show overdue missed-check spans, and every line stops at the last confirmed price.
- 1Highside Shop3 points · last checked 8 Aug 2026
- 2Everest Motorcycles1 point · last checked 22 Aug 2026
- 3MotoHeaven1 point · last checked 21 Aug 2026
- 4XPERT Moto Gear2 points · last checked 22 Aug 2026
Solid steps show periods confirmed by the store’s change-only price history and completed crawl record: if the price had changed at a check, another point would appear. Dashed steps show overdue periods with no completed crawl confirmation. Every line stops at that listing’s last confirmed check and is never extended to today. Prices are not live and may have changed since the last point shown.
How we collect and compare prices