For women chinups tend to be hard, less upper body mass, more weight in legs and I'm built like a cyclist too. Lots of heavy rows and lats work do help.
I've just been doing standard stuff. I don't care if I can't do 4000 chinups in 24hrs. I'm a bike racer that likes doing gym work in the off season. When I stop racing I'll get massive and win Worlds Strongest Man (Pensioner Edition).
"grip strength" :p
For women chinups tend to be hard, less upper body mass, more weight in legs and I'm built like a cyclist too. Lots of heavy rows and lats work do help.