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Precision-machined for smooth, reliable shifting, the Sixweel 12s Evo cassette combines optimized tooth profiles, structural upgrades, and advanced surface treatments. Split-piece CNC gearing ensures crisp transitions in the 11–16T range, while the monoblock design of 17-27 can reduce overall weight.
*Spare parts are available for each gear.
Compatible with HG 11s freehub. Compatible with Shimano 12-speed and SRAM AXS systems (will be equipped with a dedicated 11-12t gear for SRAM chains), this lightweight cassette delivers pro-level performance in a refined, accessible package.
Gear Geometry & Construction
P1 — Small Gears (11–15T / 11–16T)
Split-piece CNC-machined gears.
P2 — Mid Gears (17–27T)
Monoblock CNC construction using special titanium alloy to maximize stiffness and torque resistance.
P3 — Large Gears (30T / 34T / 35T)
7075-T6 aerospace aluminum sprockets reduce rotational mass while maintaining structural integrity.
