Shimano GRX Di2 Rear Deraileur RD-RX815 RD-RX817 for 11 speed
RD-RX815
SHIMANO GRX - DI2 - Rear Derailleur - SHIMANO SHADOW RD+ - 34T max low sprocket - 11-speed
With an integrated chain stabilizer mechanism, the SHIMANO GRX derailleur provides a quieter experience and shifting security and precision on mixed terrain. For rides on smooth surfaces, the derailleur features and ON/OFF switch for the chain tensioner.
The RD-RX815 DI2 version offers the digital precision of SHIMANO electronic shifting and synchronized shifting. and is compatible with road cassettes with a 34T low sprocket max.
• Silent and uninterrupted rear shifting on rough terrain
  Adjustable chain stabilizer prevents chain slapping and drops
  SHIMANO SHADOW RD+
• Smooth and reliable mixed surface shifting
  Switch stabilizer ON/OFF to match the terrain
  Gravel-tuned clutch tension
• Compatible with current road DUAL CONTROL LEVER
• Maximum front difference: 17T
•  Top sprocket: Max. 11T/Min. 11T
•  Low sprocket: Max. 34T/Min. 30T
• Total capacity: 38T
RD-RX817
SHIMANO GRX - DI2 - Rear Derailleur - SHIMANO SHADOW RD+ - 42T max low sprocket - 11-speed
With an integrated chain stabilizer mechanism, the SHIMANO GRX derailleur provides a quieter experience and shifting security and precision on mixed terrain. For rides on smooth surfaces, the derailleur features and ON/OFF switch for the chain tensioner.
The RD-RX817 DI2 version offers the digital precision of SHIMANO electronic shifting and synchronized shifting. and is compatible with mtb cassettes with a 42T low sprocket max.
•  Silent and uninterrupted rear shifting on rough terrain
  Adjustable chain stabilizer prevents chain slapping and drops
  SHIMANO SHADOW RD+
•  Smooth and reliable mixed surface shifting
  Switch stabilizer ON/OFF to match the terrain
  Gravel-tuned clutch tension
•  Compatible with current road DUAL CONTROL LEVER
•  Top sprocket: Max. 11T/Min. 11T
•  Low sprocket: Max. 42T/Min. 40T
• Total capacity: 31T
|
 PRODUCT SPECIFICATIONS |
||
|
 MODEL NO |
RD-RX815 |
RD-RX817 |
|
 SERIES |
GRX DI2 |
GRX DI2 |
|
 Color |
Series color |
Series color |
|
 Average weight |
287 |
318 |
|
 Mount_Direct attachment |
✔ |
✔ |
|
 Firmware update by E-TUBE PROJECT |
✔ |
✔ |
|
 Total capacity |
38T |
31T |
|
 B-axle_Hollow axle |
✔ |
✔ |
|
 Sealed bearing guide pulley |
✔ |
✔ |
|
 Sealed bearing tension pulley |
✔ |
✔ |
|
 Mount_Direct mount compatible |
✔ |
✔ |
|
 Fluoric coated link bushings |
4 |
4 |
|
 Low sprocket_Max. |
34T |
42T |
|
 Low sprocket_Min. |
30T |
40T |
|
 Max. front difference |
17T |
NA |
|
 Pulley_G pulley bearing |
Sealed bearing |
Sealed bearing |
|
 Pulley_Teeth |
13T |
11T |
|
 Pulley_T pulley bearing |
Sealed bearing |
Sealed bearing |
|
 Top-normal spring type_SHIMANO  SHADOW RD+ |
✔ |
✔ |
|
 Top sprocket_Max. |
11T |
11T |
|
 Top sprocket_Min. |
11T |
11T |
|
 Rear speeds |
11 |
11 |
|
 Di2 connectivity wired_Di2 shifting |
✔ |
✔ |
|
 Pulley |
13T |
11T |
|
 SD300 connector (pcs) |
0 |
0 |
|
 SD300 port (pcs) |
0 |
0 |
|
 SD50 connector (pcs) |
0 |
0 |
|
 SD50 port (pcs) |
1 |
1 |
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Shipping information
Trackable Delivery
- Orders of value above S$30 will be shipped using a trackable delivery service.
- Delivery lead time shall be between 2-4 working days.
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Return/Exchange
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- Clearance and pre-order item(s) are not eligible for exchange.
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- Fee varies according to the payment method used at the point of purchase:
- Visa/Master (Locally issued card): 3.2% + S$0.50
- Visa/Master (Overseas issued card): 3.6% + S$0.50
- AMEX: 3.6% + S$0.50
- Paypal: 3.9% + S$0.50
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- Please remember it can take some time for your bank or credit card company to process and post the refund.
Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.
Exceptions / non-returnable items
Certain types of items cannot be returned, like perishable goods (such as nutritional products) and custom products (such as special orders or personalized items). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item.
Unfortunately, we cannot accept returns on sale items or gift cards.