Hello guys,
as a fun project I purchased a Cube Attain 2021 disc frame to build up with parts from an old cyclocross bike which was way too large for me. I thought I could just slap on the barely used 5600 components, but it turns out that does not seem to be the case. When trying to index the gears I could not get sufficient B-Tension to shift into the larger cogs. I run a 46-30 chainset and a 12-28 cassette, so it should actually kinda be in spec for a GS 5600 RD.
I also run a Linkglide chain which I first sized big-big/+4, then later shortened so the pulley wheels are directly above each other when in the big at the front and smallest in the rear according to Shimanos manual.
After trying a lot of things including reversing the B tension screw it only seemed to get worse, now the guide pulley interferes even with the smallest cog.
Does old 105 just not work with a modern through axle disc frameset?
I noticed that the Cube derailleur hanger is much further rearwards from the hub compared to my other frames. Could this cause this problem?
Help would be much appreciated, although I have almost come to terms with having to buy a new groupset and selling the old 105 components.
by Ozymandias6311
3 Comments
Having the direct mount hanger is what is screwing it up, the derailleur wasn’t designed for the mount to be in that position relative to the axle, so the jockey wheels are too high up. Maybe there is an alternative hanger with the standard geometry if you really want to make it work?
Hard to get perspective with those pics but looks like b tension is wrong
Thanks so much guys, I was aware of the Shimano Shadow RD system, but I had no idea that it could be direct mounted to a special hanger. I will try to find a new hanger 🙂