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sirbikealot Eastern-States-Cup's article
Feb 2, 2016 at 18:49
Feb 2, 2016
sirbikealot Ridemorestudios's article
Nov 30, 2015 at 9:37
Nov 30, 2015
Home is Loam - Video
all killer no filler!
sirbikealot intensecyclesusa's article
Nov 18, 2015 at 7:50
Nov 18, 2015
Chris Kovarik Goes Full Mad Max on the M16C - Video
i'll take that over rampage any day
sirbikealot bluemtnbikepark's article
Oct 16, 2015 at 12:13
Oct 16, 2015
In Memoriam - Danny Grant
Danny was a true gentleman and tremendous human being, he will be sadly missed
sirbikealot MingMtnMedia's article
Aug 8, 2015 at 18:00
Aug 8, 2015
Video: Island Time with Rob Fraser
killin it Rob! well done
sirbikealot ca2ocent's article
Mar 5, 2015 at 14:37
Mar 5, 2015
Video: Stane Productions 2015 Reel
well done indeed, keep that women's hardcore ride going!!
sirbikealot KNOLLYBIKES's article
Jan 28, 2015 at 11:10
Jan 28, 2015
sirbikealot intensecyclesusa's article
Jan 13, 2015 at 4:10
Jan 13, 2015
sirbikealot mikelevy's article
Nov 27, 2014 at 5:40
Nov 27, 2014
POC Octal Helmet - Review
This "Unibody" construction means POC can use much lower density foam which means you can "activate" the foam in low and high energy impacts. Stiffer foams used in internal skeleton helmets can only be activated at higher energy impacts and we all know head injuries in mtb can happen at 15km/h when you go over the bars into a rock. The helmet also boast special thicker and lower "ocular lobe" protection or temple area protection. The temple area is well known from research to be one of the most common areas of impact when falling or being struck (vehicular impact). The "occipital lobe" or bump of knowledge is lower on our heads and not covered by the majority of helmets, POC made it a point to have lower coverage that any other helmet in its category (road and xc race crowd). The Octal name comes from protecting these two key areas: ocular and occipital. The Octal is also the first ever road helmet in professional use to offer MIPS (available to public Jan /15) Finally making it one of the lightest helmets in the world means it has a lower mass and physics tells us that the Mass Energy equivalence means the more mass the more energy , if we can reduce mass we are reducing the energy that is potentially transmitted to the rider in a fall or collision. Hope this help
sirbikealot mikelevy's article
Nov 27, 2014 at 5:39
Nov 27, 2014
POC Octal Helmet - Review
The Octal uses a new approach to building a helmet, creating an exoskeleton instead of an internal skeleton. Why? well the traditional helmet approach used in the industry is an internal skeleton which you put foam around. The problem with this from a protection point of view is you must also use denser foams to cradle this internal skeleton. Denser or stiffer foam means that the foam can only compress and activate at higher speeds and energies meaning at lower energy/speeds the helmet won't absorb energy and that means its going to be direct to your head, brain, neck, body etc Also an internal skeleton (imagine a plastic or carbon web like structure that sits inside the foam) vasting reduces the amount of ventilation because its always getting in the way of where you want to put ventilation holes. The Octal uses the outside Polycarbonate layer (the plastic outer shell) as its skeleton (much like a beetle has an outer shell or exoskelton) thereby allowing just one seam on the whole helmet versus dozens of seams on other helmets.
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