What undercarriage issues are you suffering from?
I’m assuming its saddle sores? I had a problem with these for some time but have been largely free of them for some time now.
When it was at its worst I read an article about a project British Cycling had undertaken when a number of their female track riders were suffering from saddle sores. The article is here:
https://www.theguardian.com/sport/blog/2016/aug/15/team-gb-cycling-saddle-sore-medals
Based on this I started using Doublebase Gel instead of Chamois cream when riding. Initially, this seemed to have a very positive impact and the instances of sores reduced significantly.
I thought this had fixed things, when last winter in the middle of the Zwift build me up programme, the little bastards cam back. I got through it by using corn plasters as a padding, but that clearly was a stopgap and not a cure.
Reading up more, it seemed that saddle sores are caused by bacteria on the skin getting into and infecting pores. So, I decided to get some anti-bacterial soap and have been using that ever since. It wasn’t just sores I was suffering from as I often got itchy armpits. Both these things flared up after a ride and after I had showered, so both the itchy armpits and the saddle sores appeared after I’d ridden, showered and thought my skin was clean.
Since last winter, I’ve been clear again. I still use Doublebase gel when I ride (outdoors or on the turbo), I get out of my cycling clothes as soon as I practically can when I finish a ride, I use anti-bacterial soap applying the bar directly to the skin and if I have any soreness or chafing after a long ride I use either a little Doublebase Gel or Savlon to soothe it.
Don’t know if this squares with any of your experience, but I know the pain and frustration saddle sores cause, so I hope its helpful to you.
So for marginal gains I need to stop bikini waxing and yet also get an aero helmet?
