| Management number | 235394002 | Release Date | 2026/07/02 | List Price | US$52.50 | Model Number | 235394002 | ||
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The Shuriken Oversized Pulley System is engineered to deliver maximum drivetrain efficiency and performance, regardless of speed, power, or riding conditions.
By increasing the pulley wheel diameter, Shuriken reduces the chain articulation angle, minimizing lateral movement and friction. The result is smoother power transfer, enhanced shifting precision, and improved drivetrain longevity.
Oversized pulley wheels rotate at lower RPM, reducing wear and improving drivetrain stability. This not only enhances efficiency but also extends component life, keeping your shifting crisp and consistent over time.
Every Shuriken pulley features Conti-Wave technology—a purpose-specific tooth profile that optimizes chain engagement and retention. The result is quiet, secure, and precise shifting, even under demanding riding conditions.
The faster-spinning top pulley is equipped with TBT ceramic bearings, delivering exceptional smoothness and ultra-low rolling resistance where it matters most. These high-precision bearings ensure maximum drivetrain responsiveness and efficiency.
Developed using advanced engineering and performance analysis, the Shuriken Oversized Pulley System offers a tangible performance advantage. By lowering friction and improving chain movement efficiency, every watt of power is transmitted more effectively to the rear wheel.
Cage Material: CNC-Machined Aluminum Alloy
Pulley Material: Composite Fiber Reinforced / Aluminum (model dependent)
Pulley Wheel Sizes: 12T / 16T, 13T / 19T, or 14T / 18T configurations (depending on derailleur model)
Pulley Tooth Profile: Conti-Wave
Bearings: TBT Ceramic (Top Pulley) + Premium Steel (Lower Pulley)
Compatibility: Shimano, SRAM, and Campagnolo (specific models available)
Mounting Type: Direct Replacement for Rear Derailleur Cage
Finish Options: Black, Red, or Titanium Grey Anodized
Weight: Approx. 60–85 g (depending on configuration)
Recommended Drivetrain: 11-speed / 12-speed systems
Reduces drivetrain friction by decreasing chain articulation
Improves shifting precision and durability
Increases bearing life through slower pulley rotation
Optimized chain engagement with Conti-Wave tooth profile
TBT ceramic bearing delivers ultra-smooth performance
Engineered for road, triathlon, and gravel applications
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