e*thirteen Helix Race Cassette - 12-Speed 9-52t Naranja MFPN=1AA00091 Rim Internal Width 12mm Rim

Rim Internal Width 12mm Rim Tape Material Rubber Wheel Diameter 26 Wheel Diameter 26'' Rim Internal Width 12Mm

Metal threads to ensure correct preload adjustment

Precision lens focuses beam onto path not into the eyes of oncoming traffic

When multiple axle lengths are listed

e*thirteen Helix Race Cassette - 12-Speed 9-52t Naranja MFPN=1AA00091 Rim Internal Width 12mm RimThe 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. Seamless cross compatibility with Shimano SRAM and TRP 12 speed drivetrains Patented 2