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Shimano Ultegra Di2 RD-R8150 2x12 Speed Rear Derailleur

IRDR8150F
₹31,660

Fastest-Ever Ultegra Di2 Shifting for Modern Road Drivetrains

Description

The Shimano Ultegra Di2 RD-R8150 rear derailleur delivers Shimano’s fastest and most accurate shifting for modern road riding. Designed for 2x12-speed drivetrains, it brings race-level electronic performance to riders who demand smooth and consistent gear changes. This is Ultegra refined for today’s roads.

Lightning-Fast Di2 Shifting: Integrated with Shimano’s latest Di2 platform, the RD-R8150 executes gear changes instantly and precisely. Shifts are crisp and dependable under load, whether sprinting or climbing. The electronic system ensures accuracy ride after ride.

Single Cage, Wide Compatibility: A single cage length supports a wide range of cassette options, handling low sprockets from 28T to 34T. This versatility allows riders to choose gearing based on terrain without changing derailleur setups. Ideal for varied road conditions and endurance riding.

Optimised for 12-Speed Road Drivetrains: Designed specifically for Shimano’s 12-speed road groupsets, the RD-R8150 ensures smooth gear transitions across the entire cassette. Chain control and alignment are tuned for efficiency and quiet operation. The result is seamless performance at speed.

Fewer external components improve reliability and aesthetics. The Ultegra Di2 RD-R8150 is built for riders who value speed, precision and modern electronic control.

Features
  • Fastest Rear Shifting: Delivers Shimano’s quickest rear shifts, 58% faster than RD-R9150 for instant gear changes.
  • LED Status Indicator: Integrated LED provides clear system status and setup feedback at a glance.
  • Battery Indicator: Visual battery status helps riders monitor charge levels before and during rides.
  • Wireless Pairing Support: Built-in pairing capability enables clean integration with Shimano Di2 systems.
  • Adjust Mode Functionality: Supports electronic adjustment mode for precise setup and fine-tuning.
  • Wider Range Capacity: Single cage design supports a broad cassette range for versatile road gearing.
  • 34T Max Low Sprocket: Compatible with up to 34T cassettes for climbing-friendly gearing options.

Technologies

  • Shimano Shadow RD: Low-profile derailleur design improves chain control, reduces noise and delivers smooth, quiet shifting.
  • Direct Mount Rear Derailleur: Optional direct mount compatibility improves frame clearance and simplifies rear wheel removal on compatible frames.

Specifications
  • Model No: RD-R8150
  • Series: Ultegra
  • Color: Series color
  • Rear Speeds: 12
  • RD Construction|Shimano Shadow RD: Yes
  • Mount|Direct Attachment (Conventional): Yes
  • Mount|Direct Mount: Yes
  • Max. Front Difference: 16T
  • Total Capacity: 39T
  • Low Sprocket|Max: 34T
  • Low Sprocket|Min: 30T
  • Top Sprocket|Max: 11T
  • Top Sprocket|Min: 11T
  • Fluoric Coated Link Bushings: 4
  • Pulley|Guide Pulley Bearing: Yes
  • Pulley|Tension Pulley Bearing: Yes
  • Pulley|Teeth: 11
  • Pulley|Sunken Type Pulley Screw: Yes
  • B-Axle|Hollow Axle: Yes
  • B-Axle 2|Hollow Axle: Yes
  • Di2 Connectivity Wired|Di2 Shifting: Yes
  • Firmware Update by E-Tube Project: Yes
  • SD50 Port (Pcs): 0
  • SD300 Port (Pcs): 1
  • SD50 Connector (Pcs): 0
  • SD300 Connector (Pcs): 0
  • LED for System Status: Yes
  • Charging Cable: EW-EC300
  • Average Weight (g): 262

Di2 Connectivity Wireless:

  • Di2 Shifting: Yes
  • Bluetooth LE Custom|Adjust Mode Information: Yes
  • Bluetooth LE Custom|Di2 Battery Level: Yes
  • Bluetooth LE Custom|Gear Position: Yes
  • Bluetooth LE Custom|Shimano E-Bike Systems Data Items: Yes
  • Bluetooth LE Custom|Compatible with E-Tube Ride: Yes
  • Bluetooth LE Custom|Compatible with E-Tube Project: Yes
  • ANT Private|Adjust Mode Information: Yes
  • ANT Private|Di2 Battery Level: Yes
  • ANT Private|Gear Position: Yes
  • ANT Private|Shimano E-Bike Systems Data Items: Yes
  • Remarks: w/o Bracket spec. available
Shimano Warranty Information

Shipping Policy

We ship across India with free shipping on orders above ₹2,000 (₹99 for orders below ₹2,000). Cash on Delivery is available up to ₹20,000, with additional COD fees based on order value. Orders typically arrive within 3–6 working days, though delays may occur.

Note: Most Shimano products may take longer to ship. View full shipping policy

Returns & Refunds

Here's a quick overview of our return and refund policy:

  • 7-Day Return Window: You can initiate a return within 7 days of receiving your product.
  • Eligibility: Items must be unused, in original condition, with all tags and packaging. Only select items like apparel (helmets, jerseys, gloves, etc.) are eligible.
  • Non-Returnable Items: Wetsuits and items discounted over 5% are not eligible for returns.
  • Compatibility Issues: Returns are not accepted for compatibility-related issues unless the product description on our website was incorrect. If you're unsure, please contact us before ordering.
  • Shipping & Processing: Return shipping is to be arranged by the customer. No pickups available.
  • Refund Options: Choose between exchange, store credit, or monetary refund (after deductions for shipping and transaction fees).
  • Order Cancellations: Only possible before the order is processed.

For full details, visit our Return & Refund Policy page.

Shimano

Shimano Ultegra Di2 RD-R8150 2x12 Speed Rear Derailleur

₹31,660

Type

Derailleur

Specifications

  • Model No: RD-R8150
  • Series: Ultegra
  • Color: Series color
  • Rear Speeds: 12
  • RD Construction|Shimano Shadow RD: Yes
  • Mount|Direct Attachment (Conventional): Yes
  • Mount|Direct Mount: Yes
  • Max. Front Difference: 16T
  • Total Capacity: 39T
  • Low Sprocket|Max: 34T
  • Low Sprocket|Min: 30T
  • Top Sprocket|Max: 11T
  • Top Sprocket|Min: 11T
  • Fluoric Coated Link Bushings: 4
  • Pulley|Guide Pulley Bearing: Yes
  • Pulley|Tension Pulley Bearing: Yes
  • Pulley|Teeth: 11
  • Pulley|Sunken Type Pulley Screw: Yes
  • B-Axle|Hollow Axle: Yes
  • B-Axle 2|Hollow Axle: Yes
  • Di2 Connectivity Wired|Di2 Shifting: Yes
  • Firmware Update by E-Tube Project: Yes
  • SD50 Port (Pcs): 0
  • SD300 Port (Pcs): 1
  • SD50 Connector (Pcs): 0
  • SD300 Connector (Pcs): 0
  • LED for System Status: Yes
  • Charging Cable: EW-EC300
  • Average Weight (g): 262

Di2 Connectivity Wireless:

  • Di2 Shifting: Yes
  • Bluetooth LE Custom|Adjust Mode Information: Yes
  • Bluetooth LE Custom|Di2 Battery Level: Yes
  • Bluetooth LE Custom|Gear Position: Yes
  • Bluetooth LE Custom|Shimano E-Bike Systems Data Items: Yes
  • Bluetooth LE Custom|Compatible with E-Tube Ride: Yes
  • Bluetooth LE Custom|Compatible with E-Tube Project: Yes
  • ANT Private|Adjust Mode Information: Yes
  • ANT Private|Di2 Battery Level: Yes
  • ANT Private|Gear Position: Yes
  • ANT Private|Shimano E-Bike Systems Data Items: Yes
  • Remarks: w/o Bracket spec. available

Features

  • Fastest Rear Shifting: Delivers Shimano’s quickest rear shifts, 58% faster than RD-R9150 for instant gear changes.
  • LED Status Indicator: Integrated LED provides clear system status and setup feedback at a glance.
  • Battery Indicator: Visual battery status helps riders monitor charge levels before and during rides.
  • Wireless Pairing Support: Built-in pairing capability enables clean integration with Shimano Di2 systems.
  • Adjust Mode Functionality: Supports electronic adjustment mode for precise setup and fine-tuning.
  • Wider Range Capacity: Single cage design supports a broad cassette range for versatile road gearing.
  • 34T Max Low Sprocket: Compatible with up to 34T cassettes for climbing-friendly gearing options.

Technologies

  • Shimano Shadow RD: Low-profile derailleur design improves chain control, reduces noise and delivers smooth, quiet shifting.
  • Direct Mount Rear Derailleur: Optional direct mount compatibility improves frame clearance and simplifies rear wheel removal on compatible frames.

The Shimano Ultegra Di2 RD-R8150 rear derailleur delivers Shimano’s fastest and most accurate shifting for modern road riding. Designed for 2x12-speed drivetrains, it brings race-level electronic performance to riders who demand smooth and consistent gear changes. This is Ultegra refined for today’s roads.

Lightning-Fast Di2 Shifting: Integrated with Shimano’s latest Di2 platform, the RD-R8150 executes gear changes instantly and precisely. Shifts are crisp and dependable under load, whether sprinting or climbing. The electronic system ensures accuracy ride after ride.

Single Cage, Wide Compatibility: A single cage length supports a wide range of cassette options, handling low sprockets from 28T to 34T. This versatility allows riders to choose gearing based on terrain without changing derailleur setups. Ideal for varied road conditions and endurance riding.

Optimised for 12-Speed Road Drivetrains: Designed specifically for Shimano’s 12-speed road groupsets, the RD-R8150 ensures smooth gear transitions across the entire cassette. Chain control and alignment are tuned for efficiency and quiet operation. The result is seamless performance at speed.

Fewer external components improve reliability and aesthetics. The Ultegra Di2 RD-R8150 is built for riders who value speed, precision and modern electronic control.

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