bmx chainring had to be milled out in the middle then got 6 bolt adapter from a shimano disk rotor, the rivets can be angle ground off quite easily. have to grind off the nuts at the back after assembled as not much room against hub.
the original idea was to have couple of chainrings for off road, cruising etc.. but 66cc or whatever they are? motor does the lot. 42 tooth chain ring. If your keen i suggest a PM to me mate "screaming emu" he pretty much did most the work on mine, he has done a few now, it wont be cheep as parts alone add up, but they look sweet, come in a range of colours and teeth.
the carbie is a delorto, but the word is the dont work going up hill, havnt tried yet. suspension seat post from chain reaction cycles.
frame was an old "balance"
keeping it real on STEEL!