for 56 I took M size. for now it it a little tight, but probably after wearing it will loosen up. product as described. to me it looks like a good product. I like it. I was able to install also a Bluetooth headset, it has special places to attach the earphones. it came very fast and in good conditions. didn't pay taxes. satisfied with the product, recommend.
I received my helmet without pinlock. It's like to buy car without wheels. I have to buy pinlock separately since it was lost by seller. The seller lied about shiping content many times. His answers are opposite (not included should by separetly/was included) He dropship products and know nothing about what he sell.