Roof Desmo modularflip-up crash helmet review on Billys Crash Helmets

Roof Desmo modularflip-up crash helmet review on Billys Crash Helmets

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The Roof Desmo is a very clever helmet that looks pretty cool and imposing too. Its dual-homologated, meaning that its been tested and approved as both an open-faced and full-faced crash helmet. Its well finished and feels good quality. The chin guard can be moved from full to open-faced positions and back with just one hand. Its slightly below average for noise suppression, pretty aerodynamic and very easy to get along with  day to day. Its not been SHARP tested so we cant really know how well it performs in an accident. However, apart from the fact that Roof dealers seem to be few and far between (only 2 in the UK according to the Roof website) its a good performing modular helmet thats well worth a look.

  • 1.7 Kg
  • Sizes XS to XXL
  • ECE 22.05 dual homologated (approved) as both full-faced and open-faced helmet
  • Flip up helmet
  • Thermoplastic composite shell
  • Target price £299

Roof Desmo with chin guard down and visor closed. Looks pretty mean huh?


The Desmos been ECE 22.05 approved but hasnt yet been SHARP tested. so its not really easy to say how effective itll be in a crash. Having said that, previous Roof helmets (including the Boxer, the R010 Diversion and the R010 Daytona) scored either three or four stars out of five. So the chances are the Desmos pretty good too. Its also dual-homologated meaning that its been ECE approved as both an open faced and full faced helmet. So if you have an accident with the chin bar up (aside from the possibility of having your jaw ripped) it should perform admirably!


Its not massively noisy for a flip-up helmet, but its not massively quiet too. If youre used to a full face helmet, youll probably find it a bit noisy. Its OK if you use ear plugs of course, and, as always, it depends on what sort of bike youre riding and whether the wind is routed at or over the helmet. In general though, Id say its probably about average amongst modular helmets for noise suppression.

Roof Desmo modularflip-up crash helmet review on Billys Crash Helmets


Some folks reckon that Roof helmets are a little short, front to back. With the Desmos chin guard down, I find my chin presses against the inside of the guard a little, so thats probably true. However I find it comfortable and it helps keep the helmet positioned correctly whereas some other helmets slip around a little when your speed goes up. While the interior is fully removable and washable, Roof also provide the cheek guards in different sizes to help you get just the right fitment. Size Large was about bang on for me and about the same size as my regular Shoei.


One of the main downsides for the Roof Boxer was the lack of ventilation. So Roof have made a particular effort to improve it with the Desmo. Its got a double vent in the chin guard, a vent at the top of the helmet and another exhaust vent to the rear. The front chin vent is really effective. Its a little fiddly to operate theres two small tabs inside the vent and you push one up and the other down to open the vent. Once open, the airflow is directly into your mouth. The top vent is spring-loaded. You push down on the two little panels to open the vent; and to close it, you push back on a tab behind them and the vent panels pop back into place to seal the vent. That works OK. The vent at the back is sealable too but probably not something youd change when riding along as itll be too awkward. Overall though, the ventilation is great good enough to keep things mist-free in the winter and cool in the summer. Bang on.

Visor & chin guard

Chin guard swivels to the rear out of the way.

The visor mechanism on the Desmo is ace. The visor itself is a big old bendy thing in the style of a helicopter pilots, but despite this, its optically pretty good. Its also anti-scratch (obviously) and has an anti-fog coating. When the chin bar is down and in position, the visor sits snugly in a rubber gasket, sealing things tight and keeping water out. Theres a tab at the top of the visor that you push up to open the visor (I found this a little odd at first but got used to it pretty quickly). The visor doesnt have any ratchets, instead it slides up smoothly and stops in place wherever you put it. With the chin bar backwards and using the helmet as an open face, the visor pulls down to act as an eye-shield. If youve got a rather large hooter, like me, then having the visor fully down does push upon your nose and give you a really effective Tubs from League of Gentlemen local nose as it presses against the inside of the visor! However, I find that if I dont pull it down fully, its still effective and leaves my honker to stick out in the small v at the bottom of the visor.

Worth mentioning is the really clever desmodronic visor mechanism that moves the visor out of the way of the chin guard when you push it back round the back of your head and brings it forward again when you pull it down. Its really nicely done and works well.


So far so good. Im usually a 60cm Large and thats what I bought the Desmo in. Its a totally perfect fit and very comfortable with no pressure spots  for me. The inner fabric is good quality and fully removable. As mentioned before, the visor can press against larger noses and the chin guard can press against the chin. So its fair to say if youre over-endowed in either the nose or chin department, its probably worth trying before you buy.

Other stuff

The Roof Desmo has a micrometric fastener which is still relatively unusual but works well. Push a plastic ratchet-strip into its retainer and it clicks firmly into place. To release, you just pull a material tab and the ratchet releases and the chinstrap opens. Its very simple to operate and works well. If youre looking to take your helmet onto the track, the Desmo doesnt have an ACU Gold Star sticker so youll not be able to use it on a track day (if they check!). The chin guard mechanism seems pretty durable and it looks like some solid metal bits and bobs are used so hopefully itll be solid. However, it does rely on friction to keep the visor open and that means parts rubbing against each other; meaning Id expect some wear and tear to take place. Roof does include a spare set of nylon fitments though together with a key-fob allen key that fits the nuts on each side of the helmet, so thats a welcome inclusion. Theres also a pretty nifty helmet bag in the box too. To see the full range of paint jobs Roof Desmo helmets follow this link .


For other helmet reviews check out either our Crash Helmet Reviews or SHARP 4 & 5 Star Crash Helmet reviews sections! And if you ve got a Roof Helmet including the Desmo wed love you to let us know what you think. Please comment below thanks!

Slightly Dodgy Roof Desmo Video

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