# Shimano Ultegra FC-R8100 Crankset - 170mm 12-Speed 52/36t Hollowtech II Spindle Interface BLK

An integral part of the Shimano Ultegra 12-speed road lineup the FC-R8100 crankset builds upon Shimano's legendary front shifting and transmission efficiency. With new refinements for seamless 12-speed shifting the Ultegra crank is now offered in a wide variety of lengths bringing performance and improved fit for smaller riders triathletes and riders with specific biomechanic requirements.-   Optimal balance of stiffness strength weight and rotational performance
-   Hollowglide structure cuts weight yet maintains strength for better power transfer and quicker more precise front shifting
    
    Color
    
    Black
    
    Rings
    
    52/36
    
    Number of Chainrings
    
    Double
    
    Crank Length (mm)
    
    170
    
    Crank Intended Use
    
    Road
    
    Drivetrain Speeds
    
    12
    
    BB Included
    
    No
    
    Pedal Spindle
    
    9/16"
    
    Spindle Interface Type
    
    Shimano Hollowtech II
    
    Chainring BCD
    
    110 Shimano Asymmetric
    
    Chainline/Hub Compatibility
    
    130 Hubs
    
    Defined Color
    
    Black
    
    Crank Length
    
    170Mm
    
    Chainring Size
    
    52/36T

## Details

- **Price:** 365.0 USD
- **Vendor:** Gio's Outdoors
- **Type:** Cranksets and Arms
- **Tags:** Gio's Outdoors, Shopify Collective

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 365.00 USD | In stock |

## Images

- Shimano Ultegra FC-R8100 Crankset - 170mm 12-Speed 52/36t Hollowtech II Spindle Interface BLK

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> Source: [Smart supply deals](https://smartsupplydeals.com/products/shimano-ultegra-fc-r8100-crankset-170mm-12-speed-52-36t-hollowtech-ii-spindle-interface-blk)
> Updated: 2026-07-22