Full Speed Ahead MegaExo Stainless Bottom Bracket Adapter for 386EVO Frames Stroke-42.5mm The automatic step-in system makes

The automatic step-in system makes it very easy to fasten the skis

When you pick up the pace

Body is CNCd from a solid billet of 6061 aluminum

Valais 25 refers to the height of the strap the Valais allows (25mm or 1" strap height)

Full Speed Ahead MegaExo Stainless Bottom Bracket Adapter for 386EVO Frames Stroke-42.5mm The automatic step-in system makesFull Speed Ahead MegaExo Stainless Bottom Bracket Adapter for 386EVO Frames. FSA (Full Speed Ahead) 386 EVO Bottom Bracket AdaptorsThis is a pair of spacers that adapts a 386 EVO crankset to a 68mm BB30 or PF30 frame; use in combination with the standard bottom bracket for your chosen frame