- 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™ elastomers and advanced tooth profiles eliminate vibration and noise for a smooth, silent ride.
- Aluminum cog: lighter, stiffer, stronger due to the design, material and production process.
- Gear ratios :
11-32: 11,12,13,14,15,17,19,22,25,28,32 - WiFli
- Weight - 151g for 11-25T option