Product Description
The newly designed crank arms offer an optimized balance between lightweight and efficiency. The crank, formed with hollow aluminum technology, is anodized with a beautiful gloss black anodized finish, giving it a luxurious look. The resin ribs on the back of the chainrings are SHIMANO 105’s unique structural design that achieves both thorough weight reduction and crisp shifting performance.
Product Specifications
Package Type
Individual package
Crank arm length(mm)
172.5
Chain Guard
Without CG
Gear Combination
50-34T
Recommended bottom bracket|Press-Fit
SM-BB72-41B
Recommended bottom bracket|Threaded (normal)
SM-BBR60
Compatible bottom bracket type|Square
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Compatible bottom bracket type|OCTALINK
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Compatible bottom bracket type|Outboard
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