e*thirteen Helix Race Cassette - 12-Speed 9-52t Eggplant CheckoutTitle=Gorewear Endure Shorts - Black }SRAM Rival 2x12-Speed Inner Chainring

}SRAM Rival 2x12-Speed Inner Chainring - 35t 107 BCD Black For use with 48t Outer

Superior ventilation using MoistureCool and AirMesh wicking fabrics

Forced Air Cooling Technology offers sophisticated ventilation system for excellent ventilation with 4 air inlets and 4 air outlets connected with flow channels

size 1-1/8" color/design silver

e*thirteen Helix Race Cassette - 12-Speed 9-52t Eggplant CheckoutTitle=Gorewear Endure Shorts - Black }SRAM Rival 2x12-Speed Inner Chainringe*thirteen Helix Race Cassette 12 Speed 9 52t Eggplant. The 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