Shimano Dura Ace RT-CL900 - 140mm | Center Lock
What Makes the Shimano Dura-Ace RT-CL900 140mm Rotor Worth It?
The RT-CL900 is Shimano's Dura-Ace tier disc brake rotor in 140mm diameter, engineered for road and gravel riders who run smaller rotors for weight savings and aerodynamic advantage on flat to rolling courses. The center-lock interface provides a more positive, concentric rotor seating than 6-bolt designs, which reduces the potential for rotor warp and vibration under sustained braking loads. The rotor's cooling fin geometry is optimized to dissipate heat quickly during repeated brake applications, maintaining consistent pad contact and hydraulic fluid stability to prevent fade.
The RT-CL900 uses a two-piece construction with a stainless steel braking track bonded to an aluminum spider, a design that combines the superior braking surface properties of steel with the weight reduction of aluminum hardware. The center-lock lockring interface is compatible with any center-lock road or gravel hub, and a standard Shimano lockring tool handles installation. This rotor is the correct size choice for riders who prioritize low weight and compatibility with compact fork and frame clearances, particularly time trial and triathlon builds where 140mm rotors are standard. It pairs with any Dura-Ace R9100 or R9200 series hydraulic caliper.
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Shimano Dura Ace RT-CL900 - 140mm | Center Lock
Shimano Dura Ace RT-CL900 - 140mm | Center Lock
What Makes the Shimano Dura-Ace RT-CL900 140mm Rotor Worth It?
The RT-CL900 is Shimano's Dura-Ace tier disc brake rotor in 140mm diameter, engineered for road and gravel riders who run smaller rotors for weight savings and aerodynamic advantage on flat to rolling courses. The center-lock interface provides a more positive, concentric rotor seating than 6-bolt designs, which reduces the potential for rotor warp and vibration under sustained braking loads. The rotor's cooling fin geometry is optimized to dissipate heat quickly during repeated brake applications, maintaining consistent pad contact and hydraulic fluid stability to prevent fade.
The RT-CL900 uses a two-piece construction with a stainless steel braking track bonded to an aluminum spider, a design that combines the superior braking surface properties of steel with the weight reduction of aluminum hardware. The center-lock lockring interface is compatible with any center-lock road or gravel hub, and a standard Shimano lockring tool handles installation. This rotor is the correct size choice for riders who prioritize low weight and compatibility with compact fork and frame clearances, particularly time trial and triathlon builds where 140mm rotors are standard. It pairs with any Dura-Ace R9100 or R9200 series hydraulic caliper.
Original: $85.99
-70%$85.99
$25.80Product Information
Product Information
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Description
What Makes the Shimano Dura-Ace RT-CL900 140mm Rotor Worth It?
The RT-CL900 is Shimano's Dura-Ace tier disc brake rotor in 140mm diameter, engineered for road and gravel riders who run smaller rotors for weight savings and aerodynamic advantage on flat to rolling courses. The center-lock interface provides a more positive, concentric rotor seating than 6-bolt designs, which reduces the potential for rotor warp and vibration under sustained braking loads. The rotor's cooling fin geometry is optimized to dissipate heat quickly during repeated brake applications, maintaining consistent pad contact and hydraulic fluid stability to prevent fade.
The RT-CL900 uses a two-piece construction with a stainless steel braking track bonded to an aluminum spider, a design that combines the superior braking surface properties of steel with the weight reduction of aluminum hardware. The center-lock lockring interface is compatible with any center-lock road or gravel hub, and a standard Shimano lockring tool handles installation. This rotor is the correct size choice for riders who prioritize low weight and compatibility with compact fork and frame clearances, particularly time trial and triathlon builds where 140mm rotors are standard. It pairs with any Dura-Ace R9100 or R9200 series hydraulic caliper.
