mine came with the frame i bought from cdhpower. 1 1/8 threadless non suspension triples. if you didnt get a headset, any 1" or 1 1/8 bmx headset will work. i left mine full length but every now and then ill let the tubes come up thru the top clamp, it drops the frame slightly and gives it a totally different feel. but mostly i keep em maxed out. youll definately want to use some sort of clamping system when putting them together, to compress the top and bottom clamps while setting the bearing preload and tighten the absolute f**k out of the bolts and make sure they still turn but not crush the bearings otherwise they will come loose. fork wobble at 45mph isnt the most enjoyable.. trust me