Originally Posted by
prj71
We both have these bikes. Hers is 2020 and mine is a 2021.
https://www.trekbikes.com/us/en_US/b...-sl-5/p/28311/
Shimano 105 R7025 and Shimano 105 R7020
We are planning to upgrade the bar tape next summer and I will look at the cable housing then. Being that the bikes are fairly new-ish, I'm not expecting to find any corrosion.
Possibly Shimano solved the problem with the 7000/8000/9100 generation? Mine were 5800 and 6800.
Checking under bar tape next summer would be prudent.