So it's finally time to post something interesting:)
Everyone is looking for XX1 rings but they are not cheap nor compatible with most cranks. So from last few months we have been working how to solve that. What we have came up with is lighter, cheaper and works same as XX1. Pick 3. http://absoluteblack.cc/sram-spiderless.html
The ultimate solution for Sram cranks that feature a removable spider. Spiderless chainrings allow for flawless single speed or Sram 1x9/10/11 drivetrain setup. These chainrings save more than 150g over regular spider and chainring combo. Reliable, extremely light, stiff and clean looking on the bike.
Chainring tooths optimized for great chain retention while riding in rough terrain!. In almost all cases chainkeeper is not necessary
. Tooth profile is directional, that means it will keep your chain on, even when back pedaling on descent.
Absolute Black: 28t -44g, 30t -48g, 32t -51g, 34t -67g
this is basically the lightest solution on the Market, which acts and works without a need for chainkeeper.
Please note that thick-thin profile is not necessary to hold chain like XX1. We have discovered that simple principle with new tooth profile which allows to bring the costs of manufacturing down and keep the chain like on XX1.
Our tester - XC Slilver World Champion, multiple national Champion and CX National Champion Marek Konwa has been using it for 4 months now and they perform great!
The principle of that is simple. We have achieved incredible tight profile of tooth to mesh with a chain. It goes in very smoothly, but when meshed with chain it holds it extremely good. In addition tooth profile is directional! That means it prevents the chain from coming off when back pedal or not pedaling at all while descending.
We are also proud that R2 bike will be selling them along with our websitehttp://r2-bike.com/navi.php?suchausdruc ... 73572e3fc5
Please note - photos does not show the newest tooth profile yet. Our Shimoano XX1 rendering is much more relevant in that matter.