Helix Race 12-Speed 9-52t Cassette Color:Naranja Designed for use with 12-speed

Designed for use with 12-speed Shimano drivetrains

Watt-saving ceramic bearings and a super light hollow titanium spindle

It was designed for recreational riders who spend a half day on the bike or less

In-Mold PC with EPS liner

The Propero 4 doesn't just meet expectations

Helix Race 12-Speed 9-52t Cassette Color:Naranja Designed for use with 12-speedThe e*thriteen Helix Race 12 speed 9 52t cassette is engineered to deliver precision shifting performance with an industry leading 578% gear range. The proprietary 9 tooth smallest cog combined with the 52t largest cog enables the use of a smaller chainring for improved clearance, lighter system weight and a lower bail out gear ratio without high gear compromise. PVD finish for improved durability