Shimano 105 FC-R7100 12 Speed Crankset Chainring:52/36 Removable presta valve core

Removable presta valve core

Measured width

This one’s for the speed freaks

The over-sized rail clampset is also more cosmetically appealing than the standard clamps on over-sized rails

Continental have different sizes

Shimano 105 FC-R7100 12 Speed Crankset Chainring:52/36 Removable presta valve coreThe Shimano 105 FC R7100 12 Speed Crankset offers an optimized balance between lightweight and efficiency without sacrificing stiffness. The crank is formed with hollow aluminum technology and finished with a durable gloss black anodizing. Resin ribs on the back of the chainrings are 105's unique structural design that achieves both weight reduction and crisp shifting performance. Features Optimal balance of stiffness, strength, weight and rotational