Shimano's 105 lineup has been delivering smooth, reliable drivetrain performance for years. This rear derailleur has a larger chain wrap capacity, which is great for running compact or standard cranks. It's also got a wider link design to help with shifting under load.
Stiff, wide outer link reduces flexing to deliver smooth, crisp shifts, every time
10-speed SIS wide link design improves longevity
Compatible with wide gear ratios (11-28T), which is great for beginner cyclists and riding in hilly areas