I don't think Duratrax makes one for the CV-R, just the CV.

Also you'll find a mixed response on these sets. I personally have used two sets and find it a VERY good alternative for $20 as opposed to the OEM from OS for ($89 was it? $69?) Never had problems . . . . .

Problems like (I've heard) the chrome plating chipping off in a short time. Problems like them losing compression very quickly. Many also claim the tolerances are poor and not good enough for racing.

Like I said I've used them twice, most recently on my wife's OS and the compression came back nice and strong and it runs well.