yeah i was about to say something to you and i used G1,G2,G3 and G4 frames and
so yeah the smaller spocket is not a good idea. For the weight as using lighter seats,
posts,cranks in magnesium or one of the lighter crank arms,titanium spindle,lighter
tires in both front and back will help.
There are a lot of ways to lighten that Quamen up and it is not going to be really
light but you can get it down to around 25LBS or so..which is not bad!