Quote Originally Posted by Graham Breeze View Post
It was my son's Veloviewer data from when he did it. Perhaps he reduced it to 17% for me in case I got too full of myself?
If you suspect that your son might be downgrading your achievements, you could always get your own route mapping software. Here is what the free, and excellent, https://cycle.travel/map makes of it. Just select your start and end points and then click on the 'Mountain' icon to get the profile. Works on footpaths too.