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Shimano Ultegra FC-R8000 Crankset

Sale $209.95$279.99 25% Off

Item # SHI00G0

Select options
  • Select options
  • Gray, 165x50/34 ($209.95)
  • Gray, 172.5x50/34 ($209.95)
  • Gray, 165x52/36 ($209.95)
  • Gray, 172.5x52/36 ($209.95)
  • Gray, 165x53/39 ($209.95)
  • Gray, 172.5x53/39 ($209.95)
  • Gray, 172.5x46/36 ($209.95)
  • Gray, 170x50/34 ($209.95)
  • Gray, 175x50/34 ($209.95)
  • Gray, 170x52/36 ($209.95)
  • Gray, 175x52/36 ($209.95)
  • Gray, 170x53/39 ($209.95)
  • Gray, 175x53/39 ($209.95)
  • Gray, 170x46/36 ($209.95)
  • Gray, 175x46/36 ($209.95)
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Item # SHI00G0

Description

Shaped by Dura-Ace.

Shimano's Ultegra FC-R8000 Crankset represents true trickle down from Shimano's flagship Dura-Ace group not only visually, but in the technological features that make both cranksets light, stiff, and shift with precision. The new, aggressively angular lines increase stiffness, providing excellent power transfer. The chainrings and bolts were also redesigned to provide better chainstay clearance for shorter rear end bikes or road disc bikes with wider dropout spacing.

Shimano has the technical expertise and manufacturing prowess to create industry-leading shifting and stiffness to weight for the rings and crank arms, respectively. The latter property is owed to Shimano's Hollowtech II arm construction, a heavily guarded secret. Where other manufacturers drill the arms to reduce weight or create two sides and clam-shell them together, Shimano is able to forge the arms and still keep them hollow. As with the Dura-Ace 9100 series, Shimano adds some width to the R8000's arms and orients the spider to more efficiently transfer energy during important power phases throughout the pedal stroke. The asymmetric spider and chainring spacing allows Shimano to put two chainring bolts close to the wider arms, further adding rigidity to the rings for better shifting and power transfer.

As noted above, Shimano's excellent chainring engineering continues with the FC-R8000. We once heard a rumor that Shimano owns patents on every single chainring tooth's shape, pin, shift ramp, etc. We're not sure if this is true, but we do know that, compared to other rings we've used, Shimano rings in operation tend to run much quieter, wear at a much better rate, and offer more positive and quicker shifting.

The tooth profiles on this crank have been slightly altered to improve shifting and chain retention at the extreme chainlines seen on the shorter stays of newer bikes combined with larger cassette ranges and wider rear spacing. To lessen the chainline, the inner chainring has been brought in .4mm towards the bike, and specially designed chainring bolts ensure enough clearance between them and the chainstays. To optimize front shifting, Shimano recommends the new FD-R8000 front derailleur as it's designed for the new chainrings' placements and allows for proper frame clearance.

Features that have been on Shimano road cranks for years are still present in this design. A 24mm steel spindle is bonded to the drive side aluminum arm and is compatible with many frame and bottom bracket—ahem—standards. The non-drive arm slides onto the crank axle with splines and allows for a precise fit. The included crank fixing bolt adjusts bearing preload and the pinch bolts secure the arm to the spindle, and the Hollowglide chainrings are lightweight and super stiff. Similar to what Shimano has done on their mountain chainrings, the outer chainring is aluminum and bonded to a composite structure, increasing stiffness while decreasing weight.

The Ultegra FC-R8000 Crankset is offered in 4 different lengths and chainring combinations, so regardless of your fit or bike's requirements, you are covered. All chainring sizes work on the same proprietary asymmetric 4-arm spider, so changing out chainrings for different terrain, disciplines, or seasons is easy. We're once again blown away by the performance and value Shimano packs into its Ultegra cranksets and feel confident that this crank will serve us well for years with the flexibility to swap it between bikes if needed.

  • The economical racer's crankset comes of age
  • Bold new lines signal an aggressive and improved crankset
  • Chainrings designed for larger cassettes and disc brake bikes
  • Spider accommodates all sizes of Shimano road double rings
  • Shimano's suite of Hollow technologies reduce weight without sacrificing durability or efficiency

Tech Specs

Arm Material:
aluminum
Arm Length:
165m, 170mm, 172.5mm, 175mm
Chainring Sizes:
36 / 46t, 34 / 50t, 36 / 52t, 39 / 53t
Bolt Circle Diameter:
110mm
Bolts:
4
Rings:
2
BB Type:
Hollowtech II
Spindle:
24mm
Q Factor:
146mm
Chainline:
43.5mm
Compatible Components:
Shimano 11 speed
Recommended Use:
cycling
Manufacturer Warranty:
2 years

Weight

Weight

Actual Weight

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

Have questions? Chat with a Gearhead

Grams

Oz

Gray, 165x50/34
n/a
n/a
Gray, 172.5x50/34
688g
24.27oz
Gray, 165x52/36
n/a
n/a
Gray, 172.5x52/36
703g
24.80oz
Gray, 165x53/39
n/a
n/a
Gray, 172.5x53/39
706g
24.90oz
Gray, 172.5x46/36
680g
23.99oz
Gray, 170x50/34
679g
23.95oz
Gray, 175x50/34
695g
24.52oz
Gray, 170x52/36
699g
24.66oz
Gray, 175x52/36
694g
24.48oz
Gray, 170x53/39
707g
24.94oz
Gray, 175x53/39
705g
24.87oz
Gray, 170x46/36
604g
21.31oz
Gray, 175x46/36
673g
23.74oz
50-34t 172.5 crankset.

Claimed Weight

Claimed weights are provided by the vendor.

Have questions? Chat with a Gearhead

[53 - 39t] 690g, [52 - 36t] 681g, [50 - 34t] 674g, [46 - 36t] 668g

Reviews & Community

REVIEWS

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will this crankset work with old ultegra 6800 groupset, I want to update only the crankset

Yes, The compatibility "spacing" will be the same, and you can use this crankset with a 6800 group ad vis-versa

Unanswered Question
Avg. ride time: 6h 22m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

I know it's listed as 11 speed. Can this be used with a 10 speed cassette?

Does this shimano ultegra R8000 crankset include the crank arm fixing bolt???

Love it

  • Familiarity: I've put it through the wringer

What can I say, it Shimano and it’s the new one.

Avg. ride time: 4h 29m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

Can I replace the chainrings of a 50/34 Ultegra R8000 with a 52/36 or with a 53/39?

Hey Manuel,

Thanks for the question!

Unfortunately you will not be able to replace the individual chain rings but we do sell crank set with both 52/36 and 53/39 gear combinations that you were asking about. If you have any other questions please feel free to contact me directly.

You can swap to a 52/36, but not a 53/39 due to the bolt pattern. The 50/34 and 52/36 use compact bolt circle (110mm I believe), where’s the 53/39 uses a standard bolt circle diameter.

excellent

  • Familiarity: I've put it through the wringer

light, stiff, great cranks. If you can spend the extra for DA I'd do it, but for the money you can't beat the new ultegra all the way around.

Unanswered Question
Avg. ride time: 13h 14m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

Do you need a Shimano bottom bracket for compatibility with these cranks?

Can't argue Shimano's quality

  • Familiarity: I've used it several times

Recently upgraded one of my bikes from Shimano 6800 to the new R8000 group and couldn't be any happier! The upgrades to the cranks, derailleurs, brakes and shifters have made this one worthwhile upgrade. These cranks not only look great, they are sleek and shift incredibly smooth.
If you have questions, please reach out me.

Hi, thanks for the article.I want a larger custom made chainring to put in the 8000- will it allow a 58T (240mm tip to tip of teeth)? thanks.