>>74230376
That's rough, my arms are still smol, and they're 40% larger than yours... Road to 15" boys.. ( bf% above 13% doesn't count )

>>74230376
More like it hasn't begun

>>74230402
>>74230406
why are my arms so small but i can curl 17.5kg for reps

>>74230443
Perhaps you need more volume, or frequency, or food, or just time. Or your form sucks and by lifting you mean horse cocking the weight up and letting it drop.. the prescription is as such. Pick a rep range, 6-10, or 12-15. 4-6 sets per session, twice per week. A double progression.. improve in reps, then once you can lift outside your rep range, increase weight. If you can go from 17.5kg for sets of 10, to 20kg for sets of 10.. your biceps will probably be bigger..

>>74230483
is doing 5 sets of 8 retarded?