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Sixweel 12-Speed EVO Cassettes (Steel version 178g-188g)

$450.00

In 2025, Sixweel became the first Chinese cassette brand to officially debut on the World Tour. After being tested by the World Tour, we continue to seek ways to improve product performance.

Materials and Process Updates: Sixweel Evo 12-speed Cassettes have obtained stable processing and heat treatment data by continuously optimizing the processing flow. The above materials can ensure that the processed products meet the design accuracy to the maximum extent. The strength after CNC hollowing can meet the needs of professional competition use, improve durability, reduce the mileage required during the running in period, and have higher durability compared to stamping processes， gears can withstand higher torque. We use different materials in different areas through calculations and long-term data feedback to achieve a balance of efficiency, stability, corrosion resistance, durability, lightweight, and aesthetics.

Upgraded Compatibility:
Sixweel 12s Evo Cassettes are compatible with HG 11s freehub ONLY;
Shimano 12-speed road group set (*Shimano or YBN chain);
SRAM 12-speed AXS road group set(*SRAM flat top chain).
*The new Evo Cassettes will be equipped with a dedicated 11t gear for SRAM chains.

Structural Patents: Both sides of 11-16T gears are split piece CNC machined to provide more efficient shifting angles for adjacent gears; single-piece gear design includes washer thickness to increase the contact surface of each gear with the freehub to improve transmission efficiency while preventing damage to the freehub; 17-27T are Monoblock CNC fabricated from steel or special titanium alloys.

Available Weights and Ratios:

12-speed Evo Steel version 11-30T 178g, 11-34T 188g;

12-speed Evo Half-Ti version 11-30T 148g, 11-34T 155g, 11-35T 159g;

12-speed Evo Full-Ti version 11-30 118g, 11-34 132g, 11-35 139g. (*Different surface treatment processes may lead to weight variations.)

In Stock item ships out in 1-3 business days. Pre-Order item ships out in 2 weeks.

Compatible Groupset:
Material:
Color:
Ratios:

In 2025, Sixweel became the first Chinese cassette brand to officially debut on the World Tour. After being tested by the World Tour, we continue to seek ways to improve product performance.

Materials and Process Updates: Sixweel Evo 12-speed Cassettes have obtained stable processing and heat treatment data by continuously optimizing the processing flow. The above materials can ensure that the processed products meet the design accuracy to the maximum extent. The strength after CNC hollowing can meet the needs of professional competition use, improve durability, reduce the mileage required during the running in period, and have higher durability compared to stamping processes， gears can withstand higher torque. We use different materials in different areas through calculations and long-term data feedback to achieve a balance of efficiency, stability, corrosion resistance, durability, lightweight, and aesthetics.

Upgraded Compatibility:
Sixweel 12s Evo Cassettes are compatible with HG 11s freehub ONLY;
Shimano 12-speed road group set (*Shimano or YBN chain);
SRAM 12-speed AXS road group set(*SRAM flat top chain).
*The new Evo Cassettes will be equipped with a dedicated 11t gear for SRAM chains.

Structural Patents: Both sides of 11-16T gears are split piece CNC machined to provide more efficient shifting angles for adjacent gears; single-piece gear design includes washer thickness to increase the contact surface of each gear with the freehub to improve transmission efficiency while preventing damage to the freehub; 17-27T are Monoblock CNC fabricated from steel or special titanium alloys.

Available Weights and Ratios:

12-speed Evo Steel version 11-30T 178g, 11-34T 188g;

12-speed Evo Half-Ti version 11-30T 148g, 11-34T 155g, 11-35T 159g;

12-speed Evo Full-Ti version 11-30 118g, 11-34 132g, 11-35 139g. (*Different surface treatment processes may lead to weight variations.)

In Stock item ships out in 1-3 business days. Pre-Order item ships out in 2 weeks.

Sixweel 12s Evo Cassettes – Smooth Shifting, Race-proven.

Engineered for serious riders who demand both precision and durability, the Sixweel 12s Evo cassettes blends smart design, premium materials, and refined CNC machining to deliver an exceptional shifting experience across a wide gear range.

Lightweight Without Compromise

Our half-titanium versions weigh as little as 148g (11-30T), delivering elite performance while reducing rotating mass.
Steel versions maintain strength and value without excess weight (11–34T weighs just 188g).

Material / Version 11–30T 11–34T 11–35T
Steel Version 178g 188g —
Half Titanium Version 148g 155g 159g
Full Titanium Version 118g 132g 139g

Actual weight may vary ±1.5g depending on finish.

Optimized Gear Architecture

The 11–16T cogs are split-piece CNC machined to fine-tune shifting angles for smoother, faster transitions under load.
The 17–27T cluster is cut from a single block of hardened steel or special titanium alloy, maximizing stiffness and drivetrain efficiency.

Built for Compatibility

Fully compatible with Shimano 12-speed road groups and SRAM AXS 12-speed systems, with a dedicated 11T gear optimized for SRAM chains. Mounts directly to HG 11-speed freehubs—no special driver needed.

Long-Lasting Surface Treatments

Every cassette is heat-treated, sandblasted, and nickel or PVD coated to resist wear, maintain shifting smoothness, and stay quiet across thousands of miles.

Color & Finish Options

Available in several anodized finishes for the aluminum section, including Super Silver, Rose Gold, Ice Berry Pink, and Cloudy Blue (availability may vary).

From race day to long climbs, the SixWeel 12s Evo cassette is designed to give you a confident, responsive ride—every shift, every time.