Key
Features: Hollow steel dome makes for the stiffest gear cluster ever at the lightest weight. Heat-treated high-grade tool steel provide superlative durability & a beautiful finish. Stealth Ring™ elastomers & advanced tooth profiles eliminate vibration & noise for a smooth silent ride. Aluminum cog: lighter stiffer stronger due to the design material & production process. Gear ratio: 11-25: 11 12 13 14 15 16 17 19 21 23 25 11-26: 11 12 13 14 15 16 17 19 21 23 26 11-28: 11 12 13 14 15 16 17 19 22 25 28 Wi F Li 11-32 cassette option: 11-32: 11 12 13 14 15 17 19 22 25 28 32