Before I write the review, I tried the case in road and off-road use on a bicycle and on mixed difficulty trails. The product handles vibrations excellently, without noise. In potholes, there seems to be some flexibility to a reasonable extent, due to the silicone. It remains sturdy and gives you a sense of security. It has a low profile, and my phone does not fall off at all. As for the grip of the case on the handlebar, on a matte coating of a classic riser MTB handlebar, it does its job very well for a medium-weight, medium-sized phone (Sony Xperia 5.5 inches, 163 grams, without a case), as it does not slip at all. Also, it fits easily on thicker handlebars, or horizontally on the stem of the handlebar, as it is elastic. I am very satisfied. Among the positives, the nice packaging.

It may not perform as well in cases of very thin smooth or nickel-plated handlebars, although I don't think it's a big problem. It definitely is not suitable for video recording, as it is elastic and shakes more. In cases of phones over 6 inches and over 250 grams, it will be difficult. Also, with a case, the difficulty of application increases for phones over 5.5 inches. It is quite tight and from what I see, if your case is a bit thick, it will make it difficult for you with 5.5-inch plus phones. It is an excellent product for medium dimensions and weight.