Skewed info .... this does not explain the large number of DISTAL fractures that occur ... ironically from users of a certain neck brace. The force you describe typically always results in a MID fracture (where the collarbone is weakest) and that is the most common alright ... but mid fractures are not common from crashes involving direct force downwards on a neck braces.
The ONLY thing that can usually shatter a DISTAL portion of a collarbone (not crack .. we are talking shatter into pieces while the mid section is still intact) is a DIRECT BLOW to the top of the collarbone. That is why they are RARE statistically, because collarbone breaks in all walks of life are normal ... normally at the WEAKEST point ... the mid section, NOT the distal portion.
Your using statistics "overall" which distorts the truth (by saying "most often"). Either that or thousands of users who have shattered their collarbones in the distal regions are "coincidently" also wearing a neck brace. Simple internet search on rider testimonials in MTB and Moto clearly shows this trend.
ALL the neck braces transfer energy to the shoulder region upon helmet contact in a crash ..all of them ..... some CONCENTRATE this force in a very small area, while others distribute it over a larger surface area. I'll choose the models that DISTRIBUTE it over a large surface area any day.
SECONDLY, you claim the Leatt has the most "space" over the collarbone ... yes .... over the MID portion, BUT sits directly on the distal portion adjoining to the acromion. The marketing pictures you use show the clearance over the mid portion. The brace sits on the distal end of the collar bone .. that is a fact. Want to keep going with this ??
Edited by supervokes, 08 August 2012 - 10:43 PM.