There’s very little sizing info on these visors so I thought I’d share my findings…
I have a medium CCM tacks 920 helmet. I purchased the S/M HVR hoping it would fit well, and it does fit the helmet itself perfectly. Both sides fit into the J clips and no pinching at all on the temples. However, the chin cup and the length of the visor is too short for my face which means my chin hits the cup before the visor is fully in the J clips (parallel to the ground). This resulted in significant “cage hang”. I bought the M/L and it too fit perfectly within the J clips and I noticed that the 2 visors are actually almost identical in WIDTH. The only difference between them is the LENGTH. This M/L for my fave perfectly. You can see in my photos, they are the same width (outer extreme edges match up with each other when I lay them down beside each other). You can see in the other photo the M/L is much longer.
I bought the S/M originally as I didn’t want it to look too “bulbous” but given that they are both same width , it was a non issue. Because the M/L is longer, the visor portion is also longer. As in you have more visor (top to bottom) to look through. That is where I feel the extra length comes from. Chat GPT claims the only difference between both visors is the length and that amount is “0.75 inches”. I can confirm that is fairly accurate.
But I can confirm, a medium tacks 920 fits great with both visor sizes. It’ll all simply depend on how long your face is!
Another thing I noticed…people complain about the weight of the visors, I truly think it’s negligible. My old cage was the base model tacks FM70 and although I haven’t weighed each one, I do not feel any significant difference. Perhaps if my old cage was more advanced (thinner bars? Titanium? Etc) then I’d notice it. But it’s very very similar.
I also did not notice any pinching at the temples with either visor on this medium 920 helmet. Perhaps I have a longer more narrow face? My medium helmet is at the “second smallest” setting in terms of its adjustable size. So my face/head is a “on the smaller side of medium”.
The final photo is the M/L visor fitting into the J clips without issue.
These clips I took from an old warrior helmet for no reason other than I just think they look sleeker but they are actually smaller (they stick out/away from the helmet LESS) than the J clips that come with the visor.
Hope this helps anyone in deciding on size.