All my life i have riddin with a motocycle helmet for BMX Racing cause i thought they were really safe. I now want to get a bmx helmet Troy Lee D2 is it safe enought to ride with or do u prefer motocorss helmets? your opion please

Great question. I have wondered this myself. I have been thru 2 D2 helmets. I have to admit they fit great and are very comfortable. The first helmet took 3 impacts. One was severe enough that I saw stars for a while. Another I left a divit in the dirt from the mouth guard. So it definately did its job in my case. I have since thrown away that helmet and got another. But, I have been looking into getting a FLY helmet.

jk

Picking a helmet can be difficult. The fit is very important, I think you'll find there a lots of variables, but on average, the mx helmets have a tighter tolerance in the fit range in each size, look up a few, choose your size and look at what the mfg states for the fit range within that size. Some helmet mfg's offer several shell sizes , while others vary the padding to make one shell fit several sizes. I think also you have to consider what the helmet was designed and tested for, also what kind of surface you're likely to crash on. Here is a very long winded but interesting read on how a helmets shell construction plays a role in the g-forces that will be transmitted to your brain. Think a super expensive high end snell rated helmet won this "shootout" you may want to read you'll be surprised.
http://www.motorcyclistonline.com/gearbox/...view/index.html

Personally I would consider a helmet such as the D2 for Bmx myself, but the fit would have to be on par with an mx lid for me to feel as safe. Im using a Suomy Spectre ECE 2205, BSI type A rated lid right now for MX and may use it for BMX as well, but I havent tried the bicycle specific lids or have I seen any testing info yet either, Im sure its possible they may be slightly softer shelled, due to the fact they arent made to motorized standards, and therefore, maybe transmit less forces to the brain. Thats just speculation on my part.

After reading the motorcyclist article and a bunch of info from a MX forum, I bought a Vemar. It was a great value. The quality is great as is the fit.

I use a Troy Lee helmet and it's very comfy and light. I am thinking of giving it a new paintjob very soon.

Troy Lee has two models of the D2
one is made of carbon fiber and the other is composite
composite is about $100 less expensive than the carbon but weighs more
I hear that the composite is safer than the carbon though.

After spending much time around motocross tracks & BMX tracks i'm certain ive seen more severe helmet to ground in BMX. Think about the over manualing slams & the head firsts into the wood walls you see. Also even though the speeds are higher & the potential from falling greater distances, motocross tracks are loose, soft, tore up dirt. BMX tracks are rock-hard & often shatter helmets on impact. "if its good enough for motocross, its good enough for BMX" doesnt cut it in my mind. In this case you get what you pay for doesnt seem to apply. FLY makes a well priced, DOT approved, quality product that also happens to be good enough for motocross.

I hear that!
jk

I have a Fly Motoross helmet and like it very much. A little heavier and bulkier(larger shell) but you get used to it quickly. I think alot has to do with the speed you are going when you crash. On a motorcycle speeds can be much higher than 30MPH and flying much higher(20 feet) so the shell is designed for that. While a BMXer may be going 20 MPH or less and maybe 4 to 10 feet above the ground. I think you are safe with either helmet, so go for comfort, this should hopefully mean less crashing. Being uncomfortable would seem to cause more accidents.

Changstar