while I'm not attempting to dispute Mutt,
I see looking at some old TO schedules for a Boeing 757-200 with RR's ---and the following annotation is stated---" If V1 exceeds Vr set V1 equal to Vr" , but I cant find any reference for setting V2 = Vr--- it must be an engineering decision covered under a few mind boggling layers
--- to which type do you refer, just curious?