went to nycewheels to day in NY--forget all they do is sell the strida gave me a possible place for parts aeroware--hecked it's site to no avail--if you think of buying the Strida you maybe out of luck if you need parts or repair--incidentally the front chainring on the strida is smaller than the one on the microbike but I believe it could work--told teh guy at Nycewheel about the microbike and may want to look it up on the net--no one was in the stodre or working in the back--said he was to busy--i told him you might learn about folding bikes there--forget it it was a waste of time.--the place is a hole in eh wall and appears to just sell folding bikes--i was not impressed and moved on