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Shimano 105 FC-R7100 12 Speed Crankset
Shimano 105 FC-R7100 12 Speed Crankset
Shimano 105 FC-R7100 12 Speed Crankset
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Shimano 105 FC-R7100 12 Speed Crankset
Shimano 105 FC-R7100 12 Speed Crankset
Shimano 105 FC-R7100 12 Speed Crankset

105 FC-R7100 12 Speed Crankset

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Shimano 105 Goes Semi-Wireless Di2 With The 7100 Series

The Shimano 105 FC-R7100 Crank is a super sturdy 2x12 HOLLOWTECH II style crankset intended to be paired with the new 12-speed 105 Di2 group.

The crank comes in both a 50x34t, and 52-36t configuration. Combined with the new 11-34 and 11-36t cassettes, it delivers a low, even sub 1:1 gear combination that can help riders take on steeper slopes, and better control their efforts.

The new Shimano 105 12 Speed Di2 groupset brings the benefits of semi-wireless electronic drivetrains to their workhorse line of components.

Pro level features are now available for every-day cyclists.


  • 2x12-speed HOLLOWTECH II crankset
  • 50x34t and 52x36t combinations

7100 Series Features:

  • Semi-wireless electronic drivetrain
  • Newly designed ergonomic shift levers

  • Minute shifting adjustability via the connection with your smartphone
  • Easily changeable batteries
  • Sleek aesthetics across the entire group

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

160mm - 50/34 Teeth

Mfg PartNum: IFCR7100MX04 

165mm - 50/34 Teeth

Mfg PartNum: IFCR7100AX04 

170mm - 50/34 Teeth

Mfg PartNum: IFCR7100CX04 

172.5mm - 50/34 Teeth

Mfg PartNum: IFCR7100DX04 

175mm - 50/34 Teeth

Mfg PartNum: IFCR7100EX04 

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New 105 is excellent
by Anonymous
Cycling Enthusiast
1 of 1 customers found this review helpful.

I recently purchased a bike with 105 di2, but it came with a Shimano non-series crankset. I replaced the crankset with the 105 7100 before riding the bike because I knew that detail would bug me forever. Compared to the older gen 105 cranks, these are more angular and modern in appearance. From a distance, they look identical to the new Ultegra and Dura Ace cranks. Other than that, these aren't too heavy and aren't too expensive - what you expect from 105 components.

Reviewed 12/27/2022
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