Hey! Im looking to build a track bike up for the summer. Im new to riding track bikes, but not new to bikes and have some Qs

Ok, Ill be building this bike up as money allows. Ive been looking at various frames, but still havent made my mind up, so i was planning on buying everything else ill need in the mean time. I just spotted that Profile Raing (of BMX fame) make track hubs...so I gotta have em! the rear comes in a 120mm or 130mm spacing. Which should i get? from what i can figure most track frames are 120mm?? I dont want to pick the wrong one then limit myself to frame choice when i get round to it.

Thanks in advance.

Get frame first and then hubs if you want to be sure.
But probably 120mm.

most track frames are 120mm.

You've already been told by the chaps above but, speaking from very personal experience, go 120mm... You'll save yourself a ton of cash (trust me) and be able to swap stuff in/out as and when you want to...

great. thanks for clearing that up folks, ill go 120mm