u/bike-rider40

I’m quite a fit guy as I do a lot of manual labour for work and weekends I bike ride for around 1/2 hrs.

But I want to get fitter in terms of muscle mass.

At home I do HITT workouts (x2 a week) along with callisthenics (x1 week)

Would you guys recommend getting weights also? Or do you think this is enough just need to up my calorie intake?

Thanks.