Over time derailleur pulleys will wear out, even if the derailleur itself is perfectly fine. Usually it comes down to the bearings going bad, the pulley teeth wearing out, or maybe both. If your bearings are feeling notchy, or the pulley teeth have rounded out, it's in your best interest to replace the pulleys to get the best shifting performance out of your drivetrain. These are genuine Shimano replacement pulley wheels for the Ultegra road rear derailleur, sealed bearings included. Be sure to select the correct option for your derailleur, whether it's Ultegra 6800-series or Ultegra R8000-series. Each kit includes two pulleys, enough for one derailleur.
Price: $12.50 from Backcountry
| Merchant | Price | |
|---|---|---|
| $12.50 | Visit Store |
Over time derailleur pulleys will wear out, even if the derailleur itself is perfectly fine. Usually it comes down to the bearings going bad, the pulley teeth wearing out, or maybe both. If your bearings are feeling notchy, or the pulley teeth have rounded...
Hoods lead a life full of danger. Concrete, asphalt, even our hands (or gloves, depending on your preference) provide constant abuse to the poor little silicone stalwarts. Wear isn't necessarily an enemy, though—after all, well broken-in hoods can be...
Getting us up to speed and back to a halt very quickly is the Shimano Ultegra ST-R8170 Di2 Shift/Brake System. This combo system includes light and responsive flat-mount calipers with an accurate wireless Di2 drivetrain. The hoods on the shifters have...