Rvm spoon calipers use oem ''size'' pads so you can use any aftermarket pad you would normally use in the oem caliper i.e you could use a a froddo pad or endless or Mu and so on if the pad fits the oem ek9 or 98 spec teg it will fit a spoon twin block caliper
well they use 4 pistons instead of a 1 piston and slider assembly so they apply a more even/greater pressure to the pads. more even pressure should give slightly more stable braking as well as longer life from discs/pads
they weigh less than half of stock calipers
by looking at them they appear that they will be alot stiffer than standard calipers
they look sooooooooo cool
i'll post up a decent review once i've fitted my calipers and let you know how much of a difference they make