EDIT ► 5 stars on sharp, safety on all sides, all green
https://sharp.dft.gov.uk/helmets/mt-stinger-2/
EDIT 7/12/23 On the back of the chin there are 2 holes where 2 small screws hold the air vent, one of them probably from the factory was not straight and because I was holding the helmet from there inside the shops (since it's new I don't leave it on the bike) and with frequent putting in/taking out, which I was also holding from there, it loosened, and now when I grabbed that spot it kept clicking and there was a gap in the front, I tightened it as it was a bit loose, nothing, eventually I removed it with a small Philips and put it back (that was tricky because I didn't have visual), probably went in straight, I tightened it and now all is ok, let's say it happens, it is indeed a difficult spot for screwing, IF there's another problem I'll update

MT Stinger 2, very good helmet, comfortable, good design, for full face especially for small bikes 50-125cc I don't think you need something more expensive to have the latest new safety certification, with relatively good material quality, of course you get what you pay for, but given that even more expensive ones have some flaws, I believe this is the best in this category
As with all helmets, pay attention to the correct size and let it be a little tight at first, it will break in quickly, it doesn't have very thick pads
- latest safety standards ece 22.06 (more tests and at more points than 22.05)
- good air vents, riding outside the city as soon as I opened them I immediately felt freshness at the top of my head, even with the top vents closed I feel a little air coming in at the top if it's strong since I have no hair, looks promising for summer
- air vents on top right/left 2 click steps, back 4 side exits on one side and 4 on the other... chin 2 click steps
- the inner protector under the fabric has grooves and several holes for air to pass through
- in light rain, riding is moderate, in a 15-minute ride so far no water has come in from the top
- noise almost non-existent (all closed). If there's wind outside a little starts at about 90km/h (with effort that's what the bike does) and when turning the head about 50 degrees it whistles slightly but this depends on wind direction/intensity, maybe if the head is a bit up or down, besides that the size matters (if it's bigger more air will come in from below) everything plays a role in the noise, mainly helmets like this with many air vents
- frequent riding outside the city even at low speed, if there is strong side/rear wind (4+ Beaufort) it probably catches with so many air vents but usually in gusts that last a little, so far I have no problem
- the visor comes off very easily from the sides that hold it even if you wear it on the bike, just if you press the base in (goes back in very easily with a little push on the base)
- the visor to fit completely down, you must hear a click like expensive helmets and it unclips from the middle, very positive for me since the previous one opened from the edge and over time one of the lift steps broke on the other side since when opening it had pressure only from one side
- the visor raised (3 steps, the 4th all the way up) holds tight at any point I adjust it
- NEGATIVE for me, at the 1st step it opens too much so in summer with such an opening wasps will get in compared to if the 1st step was just a little click up
-NEGATIVE the visor does not fit well on the rubber seal, there is a click gap in some spots just enough for an A4 paper to pass...EDIT 7/12/23 I spoke with the shop which is not at fault, they said quite a few cheap ones have the same issue, but to their credit, IF I want to return it, but given that even more expensive ones (I've seen reports even at 150 euros) and also the previous cheap Zeus had triple the gap, I'll keep it, at this price it has quite a few pros, I'll see what can be done
- the visor of course fogs up inside, in motion it clears up immediately but at night in the cold it takes a while at low speed where I often find warm/cold air spots, also outside it has never fogged up so far even at night when the humidity on cars makes beams on the headlights
- good and comfortable visibility, already 2 wasps hit the visor at 60km/h not even a scratch
- the pinlock is the same as the mt thunder 4 SV, for helmets V28, DKS435 No70
- the foam is comfortable, soft, anti-allergic, antibacterial, comes off with snaps and is washable, the label says by hand
- at the back there is a box for intercom or BT, I haven't opened it
- there is a net under the chin
- the pads at eye level thin out and glasses can be worn
- the small metric closure is convenient because it has 6 steps for tightening depending on what suits you
- the gray which is matte monochrome somewhat light color doesn't shine, easily leaves fingerprints and small marks
- the green/yellow small lines are very slightly reflective from late afternoon, as well as the 2 white stripes below because they stick out a bit on the side
- the small size is 1450g. essentially, it is not a heavy helmet but you can't call it light either for a small size
-I hope I covered everything and that it meets the safety specifications in case of need, just in case
EDIT 30/12/23 from mthelmets.ro - helmet use, Racing: 80% – Sport-Touring: 70% – Touring: 80% – Urban: 50% – Offroad: 0%.
-video, it is with wind about 2 Beaufort, everything closed (written with Nokia 3310 2017, the sound is delayed, because it is small I wedged it inside the right side chin pad) with about 85km/h and turning the head right/left up to 90 degrees
https://www.youtube.com/embed/TMnvQG1qYAI?si=blqR74mB7VtA4xGt
-video, the stinger 2 as the latest model was at EICMA 2023 in gray
https://www.youtube.com/embed/WL23gVDmTBY?si=y-UqL1KUVzUbidoL&controls=0&start=30