December 14, 2012
Extra 20mm diameter, which translates to better stopping power
The 180mm rotors are a great upgrade from the standard 160mm rotors. You won't stop on a dime and pick it up, but there is some extra benefit from having larger rotors. Extra mass to absorb heat, and a greater mechanical advantage for slowing your bike down.
For the average XC rider who likes to get a bit of speed on the downhills, these will be a nice addition to your bike.