Join Date: Jul 2002
Location: Sacramento, California, USA
Bikes: Ridley Excalibur, Gazelle Champion Mondial, On-One Pompino, Specialized Rock Hopper
Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 250 Post(s)
Are you asking whether you can hang the DA group from the new bike on the old bike? Yes, without any problem.
Or are you asking whether DA components are compatible with 105? Yes, if they're all 10-speed. If not, you may have some problems. Or not. (My CX bike is a mix of DA, Ultegra, 105, and RSX (!))