Looking at buying a pair of these-
http://www.planet-x-bikes.co.uk/i/q/BCPXULCNC/planet_x_ultra_light_cnc_brake_calipers
Anyone got some, are they any good and as light as what they are saying! They will be replacing 105 5700 calipers!
From the reviews I've heard they work as well as other lightweight calipers. Perfectly workable, but nothing on top end Shimano brakes.
I got some to replace Ultegra ones and they are awesome for the money.
And game in a few grams lighter than claimed.
Had a pair for a few years now, swopped for Dura ace 7800, only slightly less powerful than the Dura ace but look far nicer and weight a lot less. Sold my Dura ace on ebay second hand had had more than enough to buy these.
A bit fiddly to set up but thats the only gripe, nce they are set up they are a fit and forget item.