Shimano 105 components have distinguished themselves as the gateway to high performance shifting. While lesser priced lines certainly do the job well, 105 is where the Dura Ace level technology trickles down, and riders can feel the reliable smoothness even under extreme pressure. The 105 RD-5700-GS rear derailleur was designed to provide awesome shifting under any conditions, with a wide link design that increases rigidity and reliability, and promises season after season of great performance.
Positive, precise shifting under all conditions
Wide gear ratio with enhanced cable pull mechanism is compatible with 28T cassettes AND compact cranks - no need to change your rear derailleur!
Stiffer, wide outer link design suppresses flex to give you sharp, precise shifts that are faster, smoother and stable