Raised my FD. : o)
Had some free time ... an x-330 dontated parts, along with an old college franken bmx commuter.
52/12 ... with a 48 inner. This is ~90 gi, at 90 c/rpm, thats 24 mph. Much better, then the stock gearing, ( 20 mph @ 90c ) maybe now the tires are the next speed factor/excuse . ( link just in case
http://www.thorusa.com/ )
I also had a chance to weigh it . : o(
... I'll find out on tomarrows commute.