Shimano REAR DERAILLEUR, RD-RX817, GRX, 11-SPEED, TOP NORMAL, SHADOW PLUS DESIGN, DIRECT ATTACHMENT(DIRECT MOUNT COMPATIBLE)

GRX RD-RX815 Di2 Rear Derailleur

• Operates with Shimano Di2 for digital electronic shifting
• Gravel-tuned clutch tension provides smooth and reliable mixed surface shifting
• For 1x drivetrains

• Color: Black
• Largest Cog: 42
• Rear Derailleur Mount Type: Shimano Rear Direct Mount
• Chain Wrap Capacity (teeth): 31
• Cage Length: Long
• Rear Der/Shifter Compatibility: Shimano Road Di2
• Drivetrain Speeds: 11
• Weight: 318

First, you'll get 5% back in store credit to use towards future purchases.

When you purchase through us, you get:

• Advice on whether the bike or product suits your needs.
• A professional build for all bikes, which ensures safety. If there is an issue, we can promise you that 99 out of 100 times, it will be resolved quicker than you can in your garage.
• A build history that becomes a service history, ideally. That can be very helpful if you do have any sort of warranty issue.
• Warranty support - Just contact us and we will guide you through the process.