105 RD-R7150E Di2 Rear Derailleur - 12-Speed For 2x12 Speed Direct Mount BLK

The Shimano 105 RD - R7150 Di2 12 - speed rear derailleur is a game - changer. With its high - performance motor and well - optimized link structure, it can complete a shift in an instant. It's the heart of the Shimano Di2 system, packing a charging port, indicator LEDs, and adjustment switches into a compact unit. The low - profile Shimano Shadow RD design safeguards it from contact damage and falls. It can receive wireless shifting signals from the shift lever. You can check the battery level and Bluetooth/ANT pairing status via your cycle computer, smartphone, or tablet. You can also choose your preferred shift mode and view adjustment info. Connect it to your smartphone or tablet through the E - TUBE PROJECT. Tech specs include a 36 - tooth largest cog, black color, Shimano Road Di2 compatibility, Shimano Rear Direct Mount, 12 drivetrain speeds, and a 41 - tooth chain wrap capacity.

Using the Shimano 105 RD - R7150 Di2 rear derailleur is easy. First, make sure it's properly mounted using the Shimano Rear Direct Mount. Connect it to your shift lever so it can receive wireless shifting signals. To check the battery level and pairing status, use your cycle computer, smartphone, or tablet. You can also use your smartphone or tablet via the E - TUBE PROJECT to choose your favorite shift mode. When it comes to maintenance, keep it clean from dirt and debris. Check for any signs of wear and tear regularly, especially on the moving parts. After riding in wet conditions, dry it thoroughly. Avoid hitting it against hard objects to prevent damage, thanks to its low - profile Shimano Shadow RD design which already gives some protection, but still be careful.