But you have kept up with the multiple daily sets of pull-ups, even with adding bicycling. That specific strength training what is giving you improvement in that specific strength. The general fitness might have a little impact, but hardly meaningful compared to your diligent specific strength training.

If you'd seen weight loss fun bicycling, that would definitely have an impact on pull-ups. But you haven't seen that- probably me likely stable weight with some replacement of body fat for lower buddy muscle (maybe some core), but that can't really be recruited for pull-ups.

But I did those similar sets before the uptick in bicycling also. And that didn't move the needle.

At 20, I could do 20 with 25lbs on me.

After a decade of rock climbing, I could do 12 but also a one arm on the right and nearly a one arm on the left. I was climbing consistently 5.13.

At 42, I can't do any. I climb mid 11 and sometimes more.

My cycling and riding have never been too much effect on my pull-ups. Having a youthful and energetic body though...

Wow! 5.13's. That's crazy in my eyes. 5.11's is still quite impressive. I can flash 5.10c's 40% of the time. Maybe was able to do an 11a once. I suppose pull up strength isn't totally vital in the ability to climb. Hmm. I guess I'll have to come up with some other etiology for my count discrepancy.