I have always seen opinions and comments that there is actually no light, functional, well performing centerlock rotors. Shimano splines user has been left only with one or two choices.
Now it's time to change that. I want to present truly full floating centerlock rotors from absoluteBLACK. Absoluteblack - lightest centerlock rotors
hard data:Mass: 95g +/-1g
Spider: aircraft spec. solid billet cnc machined 7075 T651 aluminium
Spider Finish: type II anodizing, black
Rotor: martensitic 420 stainless steel, laser cut, grinded, vacuum heat treated, 1.7mm thick
Bolts: custom M4, Ti6Al4V (grade 5) titanium
It is actually first true full floating rotor in the bicycle industry. This means that friction ring has constant controlled ability to move from side to side and expand when heated. This greatly reduce squeal in wet problems, damps harmonic vibrations and prevents thermal distortion or warping.
* this rotor is the lightest centerlock rotor in the world, but still maintain greater braking surface than any light iso rotor.
* this is actually the first rotor where you can get the friction ring off by yourself and change to any other on our site (currently 2) - no company offer that and we are already prototyping even lighter ones to offer in the future.
* 160mm and 180mm rotors will maintain same spider, so there is no need to buy whole rotor if you decide to go up with size. You can buy friction ring for 25% of the cost of complete rotor. (180 will be available soon)
* almost rub free design as friction ring can move side to side between pads.
* reduced squeal in wet - same reasons as above. In practice you can see(hear) a significant difference riding with these compared to hope floating, shimano xtr or new formula centerlock.You can watch a small teaser of it's performance here: http://youtu.be/mJqD3hz9UaA?hd=1
More photos, some answers to ongoing discussion here:http://www.light-bikes.de/forum/showthr ... a8&t=19601
(topic is mostly in german language, but all my answers are in english)
if you have any questions or concerns just let me know. There is also tons of information on our site, so i strongly recommend to go there for answers first. Absoluteblack - lightest centerlock rotors