Rear derailleur hanger Shimano Ultegra RD-R8150 12v - Y3J198010

Give your drivetrain a new lease of life with Shimano Ultegra RD-R8150 12-speed rear derailleur pulleys. Designed to guarantee optimum shifting precision, these original cogs ensure smooth, silent, high-performance operation, even under heavy stress.

Specifically developed for Shimano Ultegra Di2 12-speed rear derailleurs, they ensure perfect chain alignment and reduced friction. Their robust design reduces premature wear and extends the life of your drivetrain.

Ideal for maintenance or replacement of worn parts, this комплект of rollers helps maintain the initial performance of your high-end Shimano groupset.

Highlights:

• Perfect compatibility with Shimano Ultegra RD-R8150 12-speed
• Improved smoothness and precision of gear changes
• Reduced noise and friction
• Genuine Shimano parts for maximum reliability
• Quick and easy to install

Technical specifications

Shimano
12-speed
Ultegra R8150 series
Sold in pairs
Reference Y3J198010

FAQ

Are these rollers compatible with other derailleur gears?
They are designed specifically for the RD-R8150 model. Compatibility with other models is not guaranteed.

What is the difference between the upper and lower pulleys?
The upper pulley guides the chain for precise changes, while the lower maintains chain tension.

When should the rollers be replaced?
When they show signs of wear (play, worn teeth, increased noise) or when the transmission is fully serviced.

Is assembly complicated?
No, installation is straightforward, using basic tools and observing the direction in which the rollers are mounted.