Block user

Recent

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.
sirbikealot sjoren's article
Jun 11, 2014 at 1:55
Jun 11, 2014
Video: Looking XC From The Heli
tremendously well made film, music was a perfect compliment and that reverse slo mo section was something special
sirbikealot TreeFrendo's article
May 12, 2014 at 2:40
May 12, 2014
Trish Bromley Rides Post Office
Trish, steppin it up at the step ups! What a woman she is, the most pleasant and happy helpful biker i know well done
sirbikealot dbaker's article
Apr 16, 2014 at 0:42
Apr 16, 2014
Endless Biking: Roots
awesome duo, great to see articles like this
sirbikealot andrewsantos's article
Mar 27, 2014 at 13:29
Mar 27, 2014
Video: Sid Slotegraaf Rides Half Nelson in Squamish
Sid super stoked for ya, enjoy every minute my good man! See ya soon in Norway for Hafjell?
Added 4 photos to boxxer
Jan 22, 2014 at 13:16
Jan 22, 2014
Selling
Jan 22, 2014 at 13:15
Jan 22, 2014

$ CAD

sirbikealot Kop5's photo
Jan 22, 2014 at 10:13
Jan 22, 2014
looks pretty good but its a 1 1/8fork, not a lot of bikes left like that, i'd be interested at $200 if you'd like?

sirbikealot Inatrance2011's photo
Jan 22, 2014 at 10:09
Jan 22, 2014
just to clarify is it 1 1/8 or 1 1/4 to 1 1/8s tapered, can you send me a pic of the steer tube ? thanks ocupdh@yahoo.com

Load more...
You must login to Pinkbike.
Don't have an account? Sign up

Join Pinkbike  Login
Copyright © 2000 - 2014. Pinkbike.com. All rights reserved.
dv14 0.052650
Mobile Version of Website