e*thirteen Helix Race Cassette - 12-Speed 9-52t Gray CheckoutTitle=Topeak JoeBlow Sport III Floor Pump 8 Color Blue Rise 40

8 Color Blue Rise 40 Weight 330 Material Alloy Width 800 Defined Color Blue Back Sweep (deg) 8 Upsweep 5

25 Metric No Lockout Switch Shock Mounted Switch Weight 355 Eyelet Diameter (mm) 12

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Long battery life (400+ hours) to power a season of rides (User replaceable AAA lithium battery)

e*thirteen Helix Race Cassette - 12-Speed 9-52t Gray CheckoutTitle=Topeak JoeBlow Sport III Floor Pump 8 Color Blue Rise 40The 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