At the mo I have some reconditioned sierra rear calipers, one of which the hand brake mechanism seems a bit iffy. I've seen some hydro mechanical ones on rally design (see below link). Will they fit the sierra rear hubs?
They mention they are 1kg lighter than sierra but i think they maybe for a golf?
Anyone know if they fit, or what have you guys used insted of std sierra calipers?
Cheers

http://www.rallydesign.co.uk/product_info.php?cPath=562_588&products_id=10563

The word on the wires that these will fit however ---

Most likely reason for the handbrake mech being iff is the handbrake cable being to tight or the hair pin pull of springs on the caliper are iffy.

If you slacken back the cable and make sure the cable is getting fully pulled of by the spring the self adjuster should work. It used to be recommended to fit Granada pull off springs which are apparently stronger but might be very difficult to get.