Replace your worn-out Shimano pulleys to restore precise gear changes

Shimano Y5XH98120 rear derailleur pulleys are designed to replace worn pulleys on many Shimano rear derailleurs. This set includes two 11-tooth pulleys – one upper pulley and one lower pulley – to restore chain guidance and drivetrain performance.

This part number Shimano is used on various 8-, 9- and 10-speed road and mountain bike drivetrains, with broad compatibility covering, in particular, certain Shimano ranges such as 105, Tiagra, Sora, Deore, SLX, Alivio, Acera, Nexave and Capreo.

The pulleys are designed to replace the original components and are supplied with a specific mounting orientation for the upper and lower pulleys. It is therefore important to ensure they are positioned correctly during installation.

Key features of the Shimano Y5XH98120 pulleys

• Genuine Shimano spare part.
• Manufacturer’s part number: Y5XH98120.
• Set of 2 pulleys: upper and lower.
• 11 teeth per pulley.
• Compatible with many Shimano rear derailleurs.
• Suitable for use on various road and mountain bike drivetrains, depending on the derailleur model.
• Confirmed compatibility with 8-, 9- and 10-speed drivetrains.
• Allows you to replace worn, noisy or loose pulleys.
• Installation requires the correct fitting direction to be observed.

Compatibility Shimano Y5XH98120

Part number Y5XH98120 is specifically compatible with Shimano derailleurs such as:

Road:

• Shimano 105 RD-5701
• Shimano 105 RD-5700 / RD-5700-A
• Shimano 105 RD-5600
• Shimano 105 RD-5501 / RD-5500
• Shimano Tiagra RD-4601 / RD-4600
• Shimano Tiagra RD-4500 / RD-4400
• Shimano Sora RD-3500 / RD-3400 / RD-3300
• Shimano RD-R350 / RD-R350-10
• Other models Shimano, compatible depending on the generation.

Mountain bikes and trekking bikes:

• Shimano Deore
• Shimano Deore LX
• Shimano Deore XT on certain generations
• Shimano SLX
• Shimano Alivio
• Shimano Acera
• Shimano Altus
• Shimano Hone
• Shimano Nexave
• Shimano Capreo.

Please note: compatibility depends on the exact derailleur model number. It is not enough for your bike to be fitted with a 10-speed drivetrain. Some product descriptions specifically state that this part is not suitable for certain 10-speed MTB derailleurs Shimano. You must therefore check the derailleur model before ordering.

Technical specifications

When should derailleur pulleys be replaced?

There are several signs that may indicate it is time to replace the pulleys:

• significant lateral play;
• visibly worn or deformed teeth;
• unusual noises coming from the derailleur;
• irregular rotation of the pulleys;
• the chain is not guided as well;
• less smooth gear changes despite correct adjustment.

Replacing the pulleys can therefore form part of preventive maintenance of the drivetrain.