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SHIMANO · Rear derailleur pulley set
Fresh pulleys, quiet Ultegra shifting.
$29.99
PriceIn stock, ready to ship
The genuine Shimano replacement pulley set for Ultegra RD-6800 and Di2 RD-6870 rear derailleurs. New guide and tension pulleys with sealed bearings bring back quiet, precise 11 speed shifting.
Sold by Ashburton Cycles
Verified store
Price
$29.99
Fits
Ultegra RD-6800 and RD-6870 Di2
Speeds
11
Contents
Guide and tension pulley
Worn jockey wheels are an easy thing to miss: the teeth get pointy, the bearings get gritty, and the drivetrain starts to sound rough. This Shimano Y5YC98140 set replaces both the guide (upper) and tension (lower) pulleys.
It is the factory part for Ultegra RD-6800 and Ultegra Di2 RD-6870 11 speed rear derailleurs, so it fits the cage exactly and shifts the way Shimano intended. Both pulleys run on sealed bearings to keep grit out.
A good job to do alongside a new chain and cassette, or whenever the old pulleys feel notchy when you spin them by hand.
Riders with Ultegra 6800 or 6870 Di2 rear derailleurs whose pulleys are worn or noisy.
Genuine Shimano
Factory replacement for RD-6800 and RD-6870.
Both pulleys
Guide and tension pulley in one set.
Sealed bearings
Keeps grit and water out.
Quieter drivetrain
Restores smooth, crisp shifting.
Every detail as listed by the manufacturer.

Shimano was founded in Sakai, Japan in 1921 and started out making freewheels. It is now the world's largest maker of bicycle components, from entry-level Tourney parts to Dura-Ace race groupsets.
SHIMANO · Rear derailleur pulley set

Fresh pulleys, quiet Ultegra shifting.
$29.99
In stockFits
Ultegra RD-6800 and RD-6870 Di2
Speeds
11
Contents
Guide and tension pulley
The genuine Shimano replacement pulley set for Ultegra RD-6800 and Di2 RD-6870 rear derailleurs. New guide and tension pulleys with sealed bearings bring back quiet, precise 11 speed shifting.
Worn jockey wheels are an easy thing to miss: the teeth get pointy, the bearings get gritty, and the drivetrain starts to sound rough. This Shimano Y5YC98140 set replaces both the guide (upper) and tension (lower) pulleys.
It is the factory part for Ultegra RD-6800 and Ultegra Di2 RD-6870 11 speed rear derailleurs, so it fits the cage exactly and shifts the way Shimano intended. Both pulleys run on sealed bearings to keep grit out.
A good job to do alongside a new chain and cassette, or whenever the old pulleys feel notchy when you spin them by hand.
Riders with Ultegra 6800 or 6870 Di2 rear derailleurs whose pulleys are worn or noisy.
Genuine Shimano
Factory replacement for RD-6800 and RD-6870.
Both pulleys
Guide and tension pulley in one set.
Sealed bearings
Keeps grit and water out.
Quieter drivetrain
Restores smooth, crisp shifting.