nneeiill: I wouldn't say it'll make you any faster unless you run the same toothcount cog as you had on your 26"er, pedal the same cadence or close to it. If you don't do that, you're just giving yourself weaker wheels and brakes, and a rougher ride with skinny tires. You could get the same speed benefit by buying a smaller cog and skinny 26" tires (and pedaling the same cadence you pedal now). You'd keep your low center of gravity and stroger brakes.