The first thing is to enlarge the space available in the cassete. As i started from a mavic one, i already had half work done. Here is the original:
original por monchito3000, en Flickr
I also had to touch the hub:
buje rebajado por monchito3000, en Flickr
and this is the finished hub:
buje 11 por monchito3000, en Flickr
For the cogs, i did a 25 teeth cog in carbon fiber and I combined it with an old dura-ace 7800 little bit tuned and some old 8sp SRP titanium cogs tuned too.
25 carbon por monchito3000, en Flickr
DSC03177 por monchito3000, en Flickr
DSC03215 por monchito3000, en Flickr
But the 25 carbon cog broke in a demanding ramp, so now i ride with a 105-dura-ace cassete combination that weights near a ton. The idea is to find some dura-ace 9000 12-25 cassette, disassemble the cogs from the aluminium core and mount they again in my own carbon core, with the appropriate measures. Also, with this idea i´ll be able to mount this 11sp cassete (with 10sp spacing between cogs) in any standart 10 sp hub. Anyway, until i have the money to buy a dura-ace cassette, could pass a long, lonnnng time
. Here are the 105 11sp:
DSC03230 por monchito3000, en Flickr
Well, and now i have to modify the shifter. First thing is to disassemble it:
desmontar maneta por monchito3000, en Flickr
Here are some weights:
some weights por monchito3000, en Flickr
This is the piece i have to modify:
DSC03254 por monchito3000, en Flickr
To do this, first i have to make a tool to hold it:
utillaje por monchito3000, en Flickr
this is with the piece ready to the new slot:
DSC03266 por monchito3000, en Flickr
And here the work is done.
regata nueva por monchito3000, en Flickr
I just have to mount it again, and that´s all. I already rode with it and works fine. My only complain is not to have the new dura-ace cassette to be able to make the lightest 11sp mechanical system
"all around the world", but when i have it i´ll post the process here.
