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

e*thirteen Helix Race Cassette - 12-Speed 9-52t Bronze redefines drivetrain versatility and performance with its expansive 578% gear range, engineered to optimize your riding experience across diverse terrain. Featuring a proprietary 9-tooth smallest cog paired with a 52-tooth largest cog, this cassette allows the use of smaller chainrings, enhancing ground clearance, reducing system weight, and delivering a lower bail-out gear ratio without sacrificing high-end speed.

• Engineered for seamless compatibility with Shimano, SRAM, and TRP 12-speed drivetrains, ensuring broad adaptability
• Innovative patented 2-Part design balances exceptional strength, stiffness, and lightweight construction while simplifying maintenance
• Separate aluminum and steel clusters enable cost-effective servicing by allowing individual component replacement
• 9-tooth high gear facilitates smaller chainring use, providing improved clearance and significant weight savings
• Compatible exclusively with XD™ and XDR™ Drivers; note that Hope XD drivers require a separately sold Cassette Shim Kit due to undersized clamp dimensions
• Extensively tested for both analog and e-bike applications, guaranteeing reliable performance under various riding conditions