A friend of mine has just splashed the cash on a new set of Hope Tech 2 with floating discs. I stupidly asked if floating discs were some sort of buoyancy aide for deep puddles
but was told "Floating rotors are supposed to ensure that the pad and disc surface are always perfectly aligned, at least that was what the motorbike fraternity used to swear by!"
So my question to the forum is - is it really that critical on a mountain bike or just hype? I mean there isn't the same power / weight ratio as a motorbike.

