# Shimano Ultegra RD-R8150F Di2 Rear Derailleur - 12-Speed Medium Cage Includes TL-EW300 BLK

With the fast and accurate Di2 shifting technology the Shimano 12-speed Ultegra RD-R8150 rear derailleur is extremely versatile thanks to a single cage length option compatible with 11-28 11-30 and 11-34 cassettes.-   Compact design includes an integrated wireless unit charger switch
-   Wider range capacity
-   Max. low sprocket 34t
-   LED status indicator
-   Battery indicator pairing adjust mode etc.
    
    Largest Cog
    
    34
    
    Rear Der/Shifter Compatibility
    
    Shimano Road Di2
    
    Rear Derailleur Mount Type
    
    10x1 Standard
    
    Drivetrain Speeds
    
    12
    
    Chain Wrap Capacity (teeth)
    
    39
    
    Cage Length
    
    Medium
    
    Color
    
    Black

## Details

- **Price:** 470.0 USD
- **Vendor:** Gio's Outdoors
- **Type:** Rear Derailleurs
- **Tags:** Gio's Outdoors, Shopify Collective

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 470.00 USD | In stock |

## Images

- Shimano Ultegra RD-R8150F Di2 Rear Derailleur - 12-Speed Medium Cage Includes TL-EW300 BLK

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> Source: [Smart supply deals](https://smartsupplydeals.com/products/shimano-ultegra-rd-r8150f-di2-rear-derailleur-12-speed-medium-cage-includes-tl-ew300-blk)
> Updated: 2026-07-22