ALPINESTARS SM3 Helmet - Heat - Gloss Yellow Fluo/Black - Large 8301026-5011-L Athletic and 4dB loudness options at

and 4dB loudness options at 12dB/oct

4 oz/yd² (80 g/m²)

23-8252 Stainless Steel Brake Hose 43 inch Reference #'s (if available): Can't find what you need

8787-2 Generator Allen Screw Reference #'s (if available): Can't find what you need

Impedance:

ALPINESTARS SM3 Helmet - Heat - Gloss Yellow Fluo/Black - Large 8301026-5011-L Athletic and 4dB loudness options atVaried thickness shell construction for optimized protection and light weight 6 piece EPS liner with three different densities Polished inner EPS liner with special coating to reduce friction with comfort liner for rotational impact management One outer shell and two inner EPS liner sizes, with optional + 5 mm cheek pads for a tailor made fit Breakaway visor