I'm 185-225 lbs in general. With aluminum rims, I tend to prefer 32H but do have a set that is 28F/32R. With carbon rims, the front is 16 or 20H with rims brakes and 20 or 24H with disc. Rear is 24H or 28H (super light Sapim cx-ray mostly). I've never broke a spoke on a carbon rim wheel and have not had to true either. Can't say that for light aluminum rims. With those rims, I personally would do 32H front and rear.