In the States at least, both the RF1100 and the Qwest do *not* come with a pinlock ready visor. Here are a couple other variations:
The Qwest is more of a round fit, while the 1100 is a more slight oval/egg shape. The 1100 is designed more for sportbikes and naked bikes/streetfighters, while the Qwest is more for touring and bikes with windshields. This doesn't mean you couldn't wear either one, but the 1100 will be louder if you have a windscreen and/or you are in a very upright position. This has to do with the type of ventilation and intended use design. It's an amazingly well vented helmet, though.
Those are the two biggest differences. You couldn't really go wrong with either one, though...unless neither fits you properly.
Key things to remember when trying on a new helmet:
Try not to be too distracted by how tight it is in the cheeks. That will have the most give, and is changeable in many helmets (especially higher end helmets). Focus on how it feels around the crown of your head. Is there an even pressure? Does it feel like there's a hot spot, or a pressure spot where it's pressing more than the rest of your head? This can indicate the helmet is the wrong shape. For example, pressing a lot on your forehead often means the helmet is designed for a more round head than you have. Be sure it's all the way on your head, and that it cannot move independently without first moving your whole scalp with it. A new helmet should feel as snug as you can stand without feeling like it's going to give you a headache in 20 minutes, and this snugness should be even around your whole head. A brand new helmet should not be "comfortable." A broken in helmet will be comfortable. If you buy it this way new, it will usually be a little too big once it's broken in. It should *not* be painful or have any pressure points, but it should feel slightly too small (just not *way* too small). If you think you've found your size, try on one size down, just to double check. You'll often be surprised. I see too many people buy a helmet that's just one size too big.
Specific helmets I'd recommend, in order:
-any full face Shoei or that fits you well
-any full face Arai that fits you well
-HJC's new RPS-10 (**this helmet has a ridiculous amount of break-in. If you normally wear a large, you'll need a medium, and if you're between medium and large in most helmets, you'll probably be a small in this one... if the shape is right for your head)
-Scorpion's EXO line: either the 500 or the 700. Heck, even the 400 ain't that shabby. 500 has the best features and best bang for the buck, but they all fit differently.
-Speed and Strength's SS1500. The 1500 rocks. Drop down visor, cheek pump, great venting, ECE rated... Basically competes with the EXO-500, but lighter and a different fit
Warning on Icon helmets: They allow a LOT of size discrepancy in their "quality control" (something they've let slip a lot in the last few years). Two mediums of the exact same model and even same color can fit totally different. If you land on getting an Icon, buy the one you try on. Ordering one will not guarantee the same fit. It's maddening. I despise this issue with Icon. Same goes for their gloves.
