E-Thirteen Helix 12 Speed Race Cassette - XD Driver - Bronze - 9-50T - 12 Speed Envelope Shipping SKS stands for "same key

SKS stands for "same key system" so you can make it quick and easy unlock and get riding

21% Rubber

Chainring sizes- 32-38T

the Dumonde Tech Pro X Regular Chain Lube is an extremely durable dry lubricant that provides outstanding performance in all conditions

E-Thirteen Helix 12 Speed Race Cassette - XD Driver - Bronze - 9-50T - 12 Speed Envelope Shipping SKS stands for "same keyThe HELIX R Cassette is an upgrade to any SRAM Eagle or Shimano drivetrain, with more range than any other cassette 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. The improved tooth profile of the Helix cassette's features Shimano 12 speed level shifting performance with the improved reliability of a steel and