"Vivid Action Mechanism" gives you a more pronounced index in the shifting with a lighter lever action * The new i-spec shifter set unifies the shifter and the brake band clamps for a clean, uncluttered setup * Instant-release, Multi-release & 2-way release options give you quick and versatile operation * Four bearings in the shifter make for smooth & effortless shifting * Position adjustment allows for custom positioning 2x / 3x mode converter to match crank/derailleur configuration 195 grams