The Rotor ALDHU spider allows you to run standard 110x4 BCD chainrings on the ALDHU crankset. The ALDHU crankset is the lightest crankset that ROTOR has ever made. The spider features a clever design that delivers robust yet smooth engagement allowing you to maximize the efficiency in transmission of power in your pedal stroke. The OCP technology allows you to adjust the chainring position by precise one-degree increments. OCP allows you to fine tune your pedal stroke to reduce knee stress and activate full muscle groups.
Constructed of CNC Aluminum that is light, strong, and durable
OCP technology allows you to adjust the chainring position by precise one-degree increments.
CALIFORNIA PROPOSITION 65 WARNING: This product can expose you to chemicals including (Cadmium, Phthalates, Bisphenol, Nickel (Metallic), di(2-ethylhexyl)phthalate "DEHP"), which is known to the State of California to cause cancer and/or cause birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
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