Rotor Chainring Set - Direct Mount | Universal Tooth | 2x 11/12s | round

Made from a single piece of aluminum, this chainring unit not only impresses with its minimalist, avant-garde design, but also represents ROTOR's most advanced technologies. The design, characterized by clean lines and a slim, robust and precise structure, ensures an incomparable weight to torsional stiffness ratio. Since no bolts or nuts are required and no spider is used, the rigidity is accompanied by a significant improvement in power transmission.

Compared to the conventional 4-arm configuration with 110 mm bolt circle diameter, this chainring set saves up to 30 grams, making it unparalleled among the 2-speed setups available on the market. The revised tooth design of the chainrings not only enables smoother shifting, but also increases compatibility, which covers 11-speed and 12-speed chains regardless of the manufacturer. In addition, sophisticated CNC milling combined with deep, durable anodizing ensures that the aesthetically pleasing chainring unit can withstand even the toughest conditions.

Universal Tooth® | This technology includes a patented tooth design for 1-speed and 2-speed chainrings. It has been specially optimized to achieve manufacturer-independent compatibility with every chain on the market.

Technical details of the ROTOR chainring unit

• range of use: road bike, triathlon, gravel
• material: aluminum 7075-T6 (CNC-milled, anodized)
• shape: round
• interface: Direct Mount (Rotor)
• chain line: 43.9 mm (road) / 46.9 mm (gravel)
• weight: approx. 170 g (50/34 teeth; manufacturer's specification)

Compatibility:

• drivetrain systems from Shimano (2x11/12-speed) and SRAM (2x11-speed)
• chains (11/12-speed) from Shimano and SRAM

Scope of supply:

1-piece chainring set with 2 sprockets (outside + inside)