Free Shipping on orders over $50* 100% Guaranteed Returns
Shipping to Hurricane Florence impact areas may be delayed
Hurricane Florence impact area orders may be delayed
  • Shimano Ultegra 6800 Crankset
  • Shimano Ultegra 6800 Crankset Detail
  • OptionsShimano -
  • Detail Images - Detail
ShimanoUltegra 6800 Crankset
Sale 28% Off$177.83 $246.99

Item # SHI0656

Select options
  • Cancel
  • Select options
  • Gray, 175x50/34 ($177.83)
  • 100% Guaranteed Returns
  • Free Shipping on orders over $50

Item # SHI0656

Modeled after Dura-Ace.

With the introduction of Shimano's new Ultegra 6800 groupset, most people's focus was naturally drawn toward the additional gearing options provided by the 11th cog. But the new group is something more than just added gearing; it represents an entirely revamped drivetrain system that now integrates its top-end Dura-Ace 9000 engineering into every one of its components. The new four-arm crankset displays this most clearly, as it pulls the same striking visuals and functionality that have made 9000's cranks so popular in the pro-tour ranks.

It's quite possible that Ultegra 6800's most stunning and recognizable feature is indeed the FC-6800 crankset, as it borrows the best technology from its Dura-Ace brother. On the surface, the FC-6800 is a complete departure from the traditional aesthetics of prior Ultegra. Gone are the days of the five-arm spider, and the necessity for a separate compact crankset has also fallen by the wayside. Instead, 6800 features a shift to a new four-arm spider design. This occured for several reasons, but most notably it's because the four-arm spider matches rigidity of Dura-Ace cranks while shedding close to 26g of weight over 6700. Also similar to Dura-Ace 9000, the 6800 cranks were built with Shimano's Hollowtech II construction. Over the past few iterations of Dura-Ace, this manufacturing methodology has played an integral role in attaining weight reduction without sacrificing Dura-Ace's superior stiffness. This, again, is a welcome improvement over the previous version of Ultegra.

Shimano has learned what works, and over the years has continually added to, and improved, the ideology of Dura-Ace, which now carries over extensively to Ultegra 6800. Hollowtech II and Hollowglide are prime examples of this. Strategic placement of hollow aluminum throughout the crankset and chainrings allows more structural material to be used, and when coupled with Shimano's integrated bottom bracket, creates an unrivaled weight-to-stiffness ratio.

The four-arm spider amplifies this characteristic, but more important to Shimano, it embodies its 'rider-tuned' philosophy. In this, Shimano created 6800 to work for you, the rider. Case in point, the four-arm design and the 'top-secret' BCD allows for front chainring combinations from 46-36T to 55-42T on the same spider. 

The Shimano Ultegra FC-6800 11-Speed Crankset is available in sizes 170, 172.5, and 175mm and in 50-34, 52-36, and 53-39 chainring options. Shimano has also added a cyclocross-specific 46-36 combination in all three crank arm lengths.

  • The crankset favored by privateer racers
  • Hollow aluminum construction based on Dura-Ace model
  • Ring sizes can be swapped without changing spiders
  • 4-arm spider accommodates chainring sizes from 46-36t to 55-42t
  • Compatible with Shimano 6800, 11-speed shifters and chainrings
Tech SpecsWeight
Tech Specs
Arm Material
Arm Length
170 mm, 172.5 mm, 175 mm
Chainring Sizes
46/36, 50/34, 52/36, 53/39
Compatible Components
Shimano 11-speed
Recommended Use
Manufacturer Warranty
2 years

Actual Weight

Actual weights are measured in-house by the Competitive Cyclist team.

Have questions? Chat with a Gearhead



Gray, 175x50/34

Reviews & Community


Write a review

    Add a:
  • Photos
  • Videos

No file chosen

Rather attach a photo from your computer?


Only jpg, jpeg, png, gif or bmp files please.

Submit ReviewCancel
Avg. ride time: 2h 50m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

One of the best

    this is a well proven shimano product, you get the exact same functionality than the dura-ace lineup but a more reasonable price and just a few grams more

    Unanswered Question

    need the bolts that hold the small chain ring on

    Good Looking Road Crank

    • Familiarity: I've used it several times

    This is a good crankset. It looks great and is well designed. I wish it offered the option for slightly lower gearing for gravel riding and it would be nice if Shimano kept the same BCD as in the past for more chainring options but for most riders these are perfect.


      I replaced a worn out 105 crank set with this Ultegra. No complaints, does what it's suppose to with easy access to service the bottom bracket.

      Shimano Quality

      • Familiarity: I've put it through the wringer

      What more is there to say about Shimano? Ultegra is simply good. It's reliable, it's quiet, it works. Not everyone loves the look, but few bike parts look "traditional" these days. If you don't mind the extra grams, go for this over Dura-Ace. Less bling, but then again, I like to fly under the radar.

      Would the ultegra crankset function with a 105 5800 front derailleur/groupset?

      That would work perfectly fine with no issues.

      Flawless function

      • Familiarity: I've used it several times

      I bought this crankset because I wanted shorter crankarms for my cyclocross bike. The rest of the drivetrain is SRAM Force or Red 10-speed, but the Ultegra 11-speed rings (46T/36T) shift perfectly.
      Installation is a snap; if you're new to Shimano's Hollowtech design, don't go crazy with the preload widget, and follow the torque specs for the non-driveside crankarm bolts.
      I only have a few hours of ride time on this crankset, but if it's like any other Shimano products I've owned, I expect it to provide trouble-free use for a long time.

      Avg. ride time: 8h 59m per week
      • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

      No complaints at all!

      • Familiarity: I've put it through the wringer

      I use this crank on my racing bike, so I've thrown a lot at it. I'm not so much concerned about the weight--which is light enough--more important is the shifting performance. As part of the Ultegra system, the shifting is really good and I don't have problems with dropped chains. Having Ultegra won't make you 10 watts faster, but it matters having shifting you can trust in a high pressure situation. I take care to maintain my chain (with Molten Speed wax) and so the teeth on the rings have survived two racing seasons and still look great.

      I also like the Hollowtech system, which makes removal and maintenance very easy--you just need an allen wrench. I once had Campy Centaur and unless you had specialized tools you had to take it into the shop to remove.

      Ultegra is not bling-y or fearsome looking, instead it's rather subdued or stealthy, as the picture suggests.

      Unanswered Question

      What bottom bracket is this crank designed for? Is this crank for an english threaded bottom bracket, and is this bottom bracket included?

      one word..Shimano

      • Familiarity: I've used it several times

      I ride Shimano because it works, every time. This crankset is no exception. Minimal upkeep/maintenance and the price keeps everyone happy.

      My go-to crankset...

      • Familiarity: I've put it through the wringer

      I use these on multiple bikes in different configurations. I even use them for my 1x11 cross bike set-up. I like that they are stiff and light enough for the price. You can pay a lot more to get something lighter and possibly stiffer but these are a great higher end crank in comparison. My one gripe would be that they show any imperfections like they are neon.


      • Familiarity: I've put it through the wringer

      I use the 50/34 (compact) in the mountains around Salt Lake City. I'm a big dude (210 lbs) and it handles the abuse. The dark grey color makes any bike look good.


      • Familiarity: I've put it through the wringer

      It is hard to beat the reliability, quality, and acceptable weights that are offered by Shimano's Ultegra group. These cranks are plenty stiff for most riders and offer excellent shifting.
      For the money, you really cannot do better than the Ultegra cranks.

      An Excellent Piece of the Puzzle

      • Familiarity: I've used it several times

      While Ultegra 6800 is very much the sum of its parts, this crankset ends up playing a notable role in the overall performance.

      While it may lack the shiny Dura-Ace looks and packs a few more grams, this is really is a top-tier crank. Construction delivers the level of polish you expect from anything carrying the Shimano name.

      Paired with the Di2 front derailleur I have found the shifts to be fast and reliable no matter the situation. The shift up to the big ring is particularly impressive and at times so immediate I question whether the shift happened at all.

      Ultegra crankset

      • Familiarity: I've used it several times

      Bought the 172.5 X 46/36 for a CX bike I'm building. Super strong and fairly light weight.


      • Familiarity: I've put it through the wringer

      A definite improvement over the previous model in that the shift from the smaller chainring to the larger one is extremely smooth; it's almost as if you have to look down at the chainwheel to see if the shift occurred. More durable but heavier then the dura ace, but at a much more affordable price. No flex in the crank arm, stiff and smooth.