e*thirteen Helix Race Cassette - 12-Speed 9-52t Bronze Weight-420 2mm Color Black Type 22

2mm Color Black Type 22

Type Standard Size 700x28 ISO 622 Bead Fold Belted Tread/Sidewall Color Bk/Blk PSI 110 Weight (Grams) 305 TPI 60 Durometer Features HP/DIT/RSH Reflective Sidewall No

Day flash 20hrs

7 sprockets on 2 alloy spider carriers

Diameter 700C Brand Velocity Model A23 ISO 622 ID Width 18 Width OD 23 Profile 19

e*thirteen Helix Race Cassette - 12-Speed 9-52t Bronze Weight-420 2mm Color Black Type 22The 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