I ride a Bonneville. I bought this for the (very occasional) sweltering day for some chill riding. I have to wear prescription glasses when riding. The pull down sun visor is excellent for protecting my glasses. There are 3 adjustments settings for the visor which is great. It has a D--lock system which I prefer. I went for a wee ride on the motorway to test it out as I normally wear Shoei Neotech 3. As soon as I hit 50mph...you could feel the tug. But I didn't buy it for that. A great lid. PS: Added a wee set of £18 aviator goggles. Simply for cosmetic purposes.