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Discussion Starter · #1 ·
Hi all,
Watching the wet Giro d'Italia stage today, I'm sure I saw a BMC rider wearing a giro ionos helmet with a clear polycarbonate skin/cover. Is there somewhere where these can be acquired? Or is there an aftermarket company producing them? I'd be keen to use one on wet, cold and windy days.....
 

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Hi all,
Watching the wet Giro d'Italia stage today, I'm sure I saw a BMC rider wearing a giro ionos helmet with a clear polycarbonate skin/cover. Is there somewhere where these can be acquired? Or is there an aftermarket company producing them? I'd be keen to use one on wet, cold and windy days.....
IDK about the clear skin. WRT the Giro, UCI has outlawed removable skins that "modify" helmets, but helmets made with them are legal. I use a water/windproof lycra cover, which is just as effective, IMO, and stashable in a pocket. Some BMC riders are wearing Giro Air Attack helmets.
 

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I didn't see it, but was it flexible? if so, it wasn't polycarbonate, which is a very tough rigid plastic (Lexan is a common brand name).

If all you want is somethinbg to block the cold air and rain from going in the vents, a cheap shower cap works quite well.
 

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Discussion Starter · #4 ·
IDK about the clear skin. WRT the Giro, UCI has outlawed removable skins that "modify" helmets, but helmets made with them are legal. I use a water/windproof lycra cover, which is just as effective, IMO, and stashable in a pocket. Some BMC riders are wearing Giro Air Attack helmets.
It was a quick glance, but it appeared to be an ionos covered in some transparent material. It appeared to be rigid given it's transparency... But I coukdve been seeing things as well.

Thanks for the shower cap idea! Very wet down here this week, I could've used a shower cap on my training rides, or even some scuba gear for that matter!

#dreadingwinter!
 

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I carry a hotel polyethylene shower cap for unexpected weather. They tend to flap and make quite a bit of noise. IMO, they're OK for "emergencies" but not something I'd use full time in cool/cold/inclement weather.
 

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I carry a hotel polyethylene shower cap.
No, you don't. You carry a hotel PVC shower cap. Polyethylene is what milk jugs are made of - a rigid or semi-rigid plastic. Polyvinylchloride is what things like clear shower curtains, shower caps, etc. are made of. While PVC is rigid at lower temperatures, it's formulated with a bunch of plasticizers to keep it flexible.
 

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Discussion Starter · #13 ·
I use a welders hat or cycling cap under my helmet?

I generate enough heat and the cap acts like a scuba wet suite, wet yet warm and no wind.
I understand there's lots of alternatives to the aero covers and ventless helmets, personally I use a skully and that does the job nicely... I was just surprised to see what appeared to be a transparent hard skin over a giro ionos, which obviously isn't a marketed giro accessory. I might try wrapping my helmet in glad-wrap this winter :)
 

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No, you don't. You carry a hotel PVC shower cap. Polyethylene is what milk jugs are made of - a rigid or semi-rigid plastic. Polyvinylchloride is what things like clear shower curtains, shower caps, etc. are made of. While PVC is rigid at lower temperatures, it's formulated with a bunch of plasticizers to keep it flexible.
Pretty sure it's polyethylene, not PVC. Thick, both are rigid (think PVC water pipe). Polyethylene film is quite flexible and somewhat stretchy, but doesn't cling like PVC food wrap film can. The shower cap plastic is is slightly milky, not transparent like PVC food wrap (Saran wrap). Either way, it doesn't matter much.

Here are some polyethylene shower caps: https://www.google.com/search?q=pol...9,d.dmg&fp=c5911bb02d232ed1&biw=1547&bih=1017

Here are examples of polyethylene film: https://www.google.com/search?q=pol...PhwICgCw&sqi=2&ved=0CGwQsAQ&biw=1547&bih=1017
 

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Pretty sure it's polyethylene, not PVC. Thick, both are rigid (think PVC water pipe). Polyethylene film is quite flexible and somewhat stretchy, but doesn't cling like PVC food wrap film can. The shower cap plastic is is slightly milky, not transparent like PVC food wrap (Saran wrap). Either way, it doesn't matter much.
You are confusing the highly plasticized food wrap with the often translucent formulations used in shower curtains, shower caps, old-style cycling rain capes, etc. - think of the old portable hair dryers women used to use - PVC. Flexible PE is like garbage bags - it stretches once but it doesn't rebound. PVC water pipe is rigid because it is not plasticized, not because it is thick. Milk jugs are rigid because of the grade of PE (molecular weight and degree of long chain branching).
 
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