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integrated ball valve system
smoothest and most reliable dropper post that will fit your bike
creating a lighter stronger helmet
and valves must all play their roles perfectly
Helix Race 11-Speed 9-46T Cassette ethirteen integrated ball valve systemSave up to 44% while supplies last! Helix Race 11 speed, 511% Range, 370 Grams More Range, Less Weight The HELIX Race Cassette is an upgrade to any SRAM or Shimano 11speed shifter and derailluer combination, with more range than other cassettes on the market. The 9 tooth cog lets you step down one chainring size while keeping the same top end gearing and provides not only better ground clearance but an overall lighter drivetrain. PRODUCT FEATURES