I haven't looked at the ZRA form, but for my TR you could choose tapered or V front at no extra cost.

I got 25" wheels on my new TR3 and this is my first with anything other than 24" wheels in 30 years. I recall reading here that it takes a bit more to get 25" wheels rolling but once you do it much nicer...althought I do believe this can be person depandant...I tend to agree with that statement. I went with 25" wheels for easier reach as I didn't want to lower my chair anymore and, for me, I wish I would have went to 25" wheels many, many years ago!

I use the Schwalbe Marathon Plus 25" tires.