E-Thirteen Helix Race Cassette - 12-Speed 9-52t Intergalactic

e*thirteen Helix Race Cassette - 12-Speed 9-52t Intergalactic. Engineered for riders who demand precise, reliable shifting across the widest gear range available, the e*thirteen Helix Race 12-speed 9-52t cassette delivers exceptional performance with a remarkable 578% gear range. Its innovative 9-tooth smallest cog paired with the 52-tooth largest cog allows for the use of smaller chainrings, enhancing ground clearance, reducing overall system weight, and providing a lower bailout gear ratio—all without sacrificing high gear efficiency.

• Compatible seamlessly with Shimano, SRAM, and TRP 12-speed drivetrains, ensuring versatile integration
• Patented two-part design combines strength, stiffness, and lightweight construction while simplifying maintenance
• Separately replaceable aluminum and steel clusters minimize service costs and extend cassette lifespan
• 9-tooth high gear enables smaller chainrings for improved clearance and weight savings without compromise
• Fits XD™ and XDR™ drivers exclusively; Hope XD drivers require a separately sold Cassette Shim Kit due to undersized clamp location
• Extensively tested for both analog and e-bike applications, guaranteeing durability and performance under varied conditions