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.
WiFLi 11-32 cassette option:
(available February 2014)