SRAM Force Rear Derailleur
Sram's Force rear mech provides precision 10 spd shifting using their 1:1 actuation ratio.
SRAM say :-
Crisp, clean, correct shifting, always: the most precise gear change in cycling is here in the SRAM Force rear derailleur.
The Force rear derailleur represents the same design philosophy that has yielded our best-in-class products for the MTB market. The Force rear mech takes advantage of Exact Actuation , an actuation ratio that delivers precise 3mm shifts in every gear along with the widest range of adjustment available, delivering the best 10 speed performance in the sport.
The Force derailleur is crafted with cutting-edge materials, including a carbon fibre outer cage and a magnesium inner link. The final result is an impressive 174g rear deralleur.