Review on High-Quality SHIMANO Dura-Ace Pulley Assembly 🔧 Pair for Rear Derailleur – Ensuring Optimal Performance! by Mark Hicks

Bought these to rebuild an old 1993 Shimano Deore XT and 1997 RSX (long cage). They are designed for 9 speed chains (8mm cage hole) but have 4 stainless steel washers for $0.90. from a local hardware store that maintains a 10mm gap between cages. They also have 11 teeth. instead of 10T, but that's fine as it makes shifting crisper (upper roll) and increases the derailleur's ability to flip (lower roll). The package has a ceramic sealed pulley and a sealed ball bearing pulley.