The SRAM Force 1 rear derailleur adopts all the technologies of SRAM 1x™ MTB to provide the fastest, quietest 1x11 shifting available. SRAM's unique clutch system eliminates chain slack, providing for smoother, quieter, and more secure chain travel.

Features:

EXACT ACTUATION™ for fast and accurate shifts using SRAM's 1:1® actuation ratio (shifter cable travel: derailleur movement)
X-SYNC™ pulley features a 12-tooth design that helps control the chain's lateral movement
ROLLER BEARING CLUTCH™'s one-way roller clutch controls chain tension for consistent shifting
X-Horizon™ straight parallelogram design limits all movement to the horizontal axis, which makes ghost shifting impossible while also reducing shift force
Cage Lock™ technology makes for fast wheel changes or chain installation
A dedicated SRAM 1x™ rear derailleur

Specifications:

SPEEDS – 11s
CABLE PULL RATIO – Exact actuation
CAGE (RD) - Long
MAX TOOTH – 42
COLOUR (SL) – Grey
PULLEY BEARING MATERIAL – Steel
CAGE MATERIAL (RD) – Aluminum