SHIMANO Ultegra FC R8100 12 speed double chainset, 50 / 34T 172.5 mm
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Offered in even shorter crank arm lengths to offer adjustment options for any rider. Transfers your pedaling effort to the transmission. Hollow aluminium cranks Large chainring Ensures the fastest and most accurate front shifting available. Forged Ensures light weight.
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Amazon
Offered in even shorter crank arm lengths to offer adjustment options for any rider. Transfers your pedaling effort to the transmission. Hollow aluminium cranks Large chainring Ensures the fastest and most accurate front shifting available. Forged Ensures light weight.
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Price
Offered in even shorter crank arm lengths to offer adjustment options for any rider. Transfers your pedaling effort to the transmission. Hollow aluminium cranks Large chainring Ensures the fastest and most accurate front shifting available. Forged Ensures light weight.