Not that keen on $500, but thank you anyway.i have a pair of Mono M4's, 185mm front and rear, IS mounts, also have some new top caps and seals/diaphrams for the resevoirs as mine are a little scratched, think i also have a spare set of pads
wasn't really looking to sell them but i would for $500
e-mail for pics
adam@southshorebikes.com