i put these on my bike and to be quite honest, I didn't notice any difference as far as blocking the wind. What i did notice though is once I throw my feet up on the highway pegs, the way the deflectors re-direct the wind, makes is very annoying to my face and neck. I took them off. I'll sell them to you for $20 if you want them.

Todd

 

I have the chrome deflectors and the baffle installed and find that they work well together winter and summer.

 

I have the chrome one that bolts on between the forks.I could tell a difference when I first put it on.Not a great deal,But some.Its worth the 20-25 bucks.

 

I have the fork deflectors and the baffle. If you ride in colder weather you will feel a big difference. I take off the fork deflectors in the warm weather so my engine will cool better.