Yes you can install them, I have the exact ones. Recently installed capped, non capped, i.prestige xl, microgel radical, e.t.c on both my 630 and 280. The I.prestige ones fit, but are not 100% plush with the hoop, barely noticable! You will remove 10grams in weight with the non capped ones. My capped one is heavy also. Head were pretty consistent with their grommet fit, as long as the 630cm head size is in question, no problem.