Shipping Estimate
USA
- USA
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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 14 - Jul 19
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For Your Every Summer RSVP, with Code: SUMMER15
Description
GRX Di2 RD-RX815GRX Di2 11 speed rear derailleur for double cranks Adjustable chain stabilizer prevents chain slapping and drops Gravel tuned clutch tension can be toggled ON OFF to match the terrain Maximum front difference: 17T Total capacity: 40T Low sprocket: Max. 34T Min. 30T Top sprocket: 11T Attributes Cage GS Max Front Difference 17T Maximum Cog 34T Minimum Cog 11T Primary Color Grey RD Capacity 40T RD Spring Type Shadow Plus RD Weight 287g Speed 11
- GRX Di2 11 speed rear derailleur for double cranks
- Adjustable chain stabilizer prevents chain slapping and drops
- Gravel-tuned clutch tension can be toggled ON/OFF to match the terrain
- Maximum front difference: 17T
- Total capacity: 40T
- Low sprocket: Max. 34T/Min. 30T
- Top sprocket: 11T
Attributes
| Cage | GS |
| Max Front Difference | 17T |
| Maximum Cog | 34T |
| Minimum Cog | 11T |
| Primary Color | Grey |
| RD Capacity | 40T |
| RD Spring Type | Shadow Plus |
| RD Weight | 287g |
| Speed | 11 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 1934 reviews
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Product Reviews
★★★★★ 5
Excelente producto.
Case perfecto
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Reviewed in the United States on November 19, 2025
★★★★★ 5
Worked out great
Replaced on my E46 with this, it had better finish than the original, since it had a worn coating. Fitted like OEM without the OEM price.
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Reviewed in the United States on August 31, 2023
★★★★★ 5
Perfecto
Casa perfecto
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Reviewed in the United States on August 7, 2025
★★★★★ 4
Good product
Fits nice. No proplem to install
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Reviewed in the United States on August 14, 2023
★★★★★ 5
Fits and looks good
Model: E46-4door, Size: Double Slats-Glossy Black
Fit great, looks good. Would recommend for e46
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Reviewed in the United States on April 17, 2026