- Hollow steel dome makes for the stiffest gear cluster ever at the lightest weight
- Heat-treated, high-grade tool steel provide superlative durability and a beautiful finish
- StealthRing elastomer and advanced tooth profiles eliminate vibration and noise for a smooth, silent ride
- Aluminum cog: lighter, stiffer, stronger due to the choice of design, material and production process
- Compatible with other SRAM rear derailleurs
- Weight: 135.0 g (11-23)
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