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Shimano
105 FC-5800 11-Speed Crankset

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A trickle-down torrent.

In the case of the Shimano 105 FC-5800 11-speed Crankset, the term "trickle-down" should more aptly be replaced by "deluge-down." The new 105 crank employs so much of the technology and performance of its more expensive Ultegra and Dura-Ace siblings that it begins to look a bit like cannibalism, and that's a great thing for you if you don't want to drop major coin on a crankset, but still want great stuff.


Replacing the 5700-series family of 105 parts, the new 5800 group steps up to 11 speeds, and its performance is now on-par with that of Dura-Ace from only a few seasons ago. That's pretty remarkable. So how does the 5800-series crank do it? Most notable to the eye is the adoption of Shimano's new 4-bolt spider and chainring configuration. Not only does the new design simultaneously lighten and stiffen the crank, it means the 105 crank now comes with only one bolt-circle diameter (or BCD) measurement — as on Ultegra and Dura-Ace. Now you can have its chainrings swapped out between the available 53/39-, 52/36-, or 50/34-tooth combinations without needing new crank arms. Also along with Ultegra and Dura-Ace, the 105 chainrings are now constructed using carbide elements that lighten them while also boosting their rigidity for greater power transfer, durability, and more precise shifting.


The Shimano 105 FC-5800 11-Speed Crankset is available only in the color Black. It comes with arm lengths of 170, 172.5, or 175 millimeters and with 53/39-, 52/36-, or 50/34-tooth chainring combinations. A bottom bracket is not included.


Details

  • Aluminum arms
  • 4-bolt spider/chainring configuration
  • Available with multiple chainring combination options
  • Item #SHI002S
Arm Material
aluminum
Arm Length
170 mm, 172.5 mm, 175 mm
Chainring Sizes
53 / 39 t, 52 / 36 t, 50 / 34 t
Bottom Bracket
not included
Rings
2
Spindle
24mm
Compatible Components
Shimano 11-speed drivetrains
Claimed Weight
[53/39] 740 g
Recommended Use
road cycling
Manufacturer Warranty
2 years

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