It has been quite sometimes that I have not posted anything here. Since my 1st child was born on February 2012, and May 2012 I bought a new Road bike. What you will be from the photos below are what you can see from my photos comparison. Else you have to read
here.
Shimano Dura-ace VS. Ultegra RD
spot the different?
Carbon pulley plate on the 7900 saves weight
RM570
RM232