On Friday, September 11, 2020 at 12:19:34 PM UTC-7, wrote:
Hmm. I have a carbon Ridley frame from 2010 or a bit earlier. And Shimano Di2 7970 on it. No internal wiring on my bike. I used red and white electrical tape wrapped around the frame tubes to hold the Di2 cables. Black Di2 cables. Big gray external battery below the water bottle on the downtube. All looks fine to me Probably the biggest looks error is the unused cable holders for the shifters at the top of the downtube. Di2 doesn't use those and you can't just take them off unfortunately.
I think that at that time the controller had to be tied to one of the brake cables.
https://sfbay.craigslist.org/sfc/bop...183080084.html

The Ridley I had was aluminum and had extremely good handling off-road. It simply could not be knocked off of its line.