I have a Standard English threaded BSA frame. I am exploring to buy just crank arms with following features: less/around than 500grams, 24mm Spindle (if 30mm spindle I need the 'adapter' -read below), 110-BCD-Compact

I am planning to re-use my chain rings and BB. If Rotor is among what you can offer, if I'm not mistaken there's an 'adapter' (called BSA 30?) so your BB30 crank would fit the Standard English and I'd need it too. Open to other brands as well

Thanks for letting me know what you have