# Shimano Alivio RD-M3100 Rear Derailleur - 9-Speed Long Cage

The Shimano Alivio RD-M3100 Rear Derailleur features Shadow RD technology to keep the derailleur safe from trail obstacles.-   Super low profile Shadow RD technology
    
    Largest Cog
    
    36
    
    Rear Der/Shifter Compatibility
    
    Shimano Mountain
    
    Rear Derailleur Mount Type
    
    10x1 Standard
    
    Drivetrain Speeds
    
    9
    
    Chain Wrap Capacity (teeth)
    
    45
    
    Cage Length
    
    Long

## Details

- **Price:** 48.0 USD
- **Vendor:** Gio's Outdoors
- **Type:** Rear Derailleurs
- **Tags:** Gio's Outdoors, Shopify Collective

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 48.00 USD | In stock |

## Images

- Shimano Alivio RD-M3100 Rear Derailleur - 9-Speed Long Cage

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> Source: [Smart supply deals](https://smartsupplydeals.com/products/shimano-alivio-rd-m3100-rear-derailleur-9-speed-long-cage)
> Updated: 2026-07-22