Renthal Ultralightâ„¢ rear chainwheels are 66% lighter than steel. Precision CNC manufactured to extremely tight tolerances. High-strength specially enhanced 7075 T6 aluminum alloy. Computer aided Ultralightâ„¢ desig...

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Renthal Ultralightâ„¢ rear chainwheels are 66% lighter than steel. Precision CNC manufactured to extremely tight tolerances. High-strength specially enhanced 7075 T6 aluminum alloy. Computer aided Ultralightâ„¢ design gives the maximum reduction o

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