I have rebuilt an older roadbike with friction downtube shifters, and fitted the chain and gear cables this morning. I wanted to thread the chain big front to small at the back to get the length right so to make it easy I connected the front mech cable to allow me to move the mech over the big chainwheel. It all went smoothly and only took a few minutes to fit the cable and join the chain. Then I came to fit the rear derailleur cable but was unable to get it positioned correctly under the bottom bracket to run along the chain stay. It actually took me a few minutes to realise I had put the front cable on the right hand lever and was trying to fit the rear derailleur cable on the left hand lever.
When I consider how many times on so many bikes I have fitted new cables and have never had that problem before I am seriously considering at 67 years old the current state of my mental acuity.
When I consider how many times on so many bikes I have fitted new cables and have never had that problem before I am seriously considering at 67 years old the current state of my mental acuity.