Alpinestars SM3 Solid Helmet vs Alpinestars SM7 Helmet
Both are Alpinestars off-road helmets rated 4.8, but they sit at different levels. The SM7 is the step-up model: a fiberglass, carbon and Aramid composite shell, ECE 22.06, 20 vents, three shell sizes and the A-Head fitment system, at a slightly lower weight than the SM3. The SM3 is the simpler thermo-injected shell with rotational impact protection, DOT and ECE certification, and a broad size run including kids. Buy the SM7 for serious MX and enduro riding; buy the SM3 for casual dirt days and younger riders.
- Choose the Alpinestars SM3 if you want a proven off-road helmet with rotational impact protection, DOT and ECE certification, and a kids option.
- Choose the Alpinestars SM7 if you race or ride hard and want a lighter composite shell, ECE 22.06, more venting and a finer fit adjustment.
Prices
- Alpinestars SM3 Solid Helmet: $229.00 at Amazon (last seen Nov 13)
- Alpinestars SM7 Helmet: $359.99 at 24mx.com (last seen Nov 13)
- Difference: the Alpinestars SM3 Solid Helmet is $130.99 cheaper than the Alpinestars SM7 Helmet at the latest prices (Nov 13)

