Shimano genuine spare part for Dura-Ace Di2 11-speed rear derailleur
The Shimano Y5ZV98010 support axle unit is a genuine spare part designed for the standard version of the Dura-Ace Di2 RD-R9150 rear derailleur ( Shimano ). It connects and secures the derailleur to the derailleur hanger on the frame. Shimano officially refers to it as the ‘Bracket Axle Unit (for normal type)’.
This part number is particularly useful for refurbishing an 11-speed RD-R9150-SS without replacing the entire derailleur. The unit is available as a standalone replacement part from Shimano.
Key features of the Shimano Y5ZV98010
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Genuine Shimano part.
- Part number: Y5ZV98010.
- Designed for the Dura-Ace Di2 RD-R9150.
- Compatible with the RD-R9150-SS 11-speed.
- Designed for standard installation.
- Allows you to replace a worn or damaged axle/bracket assembly.
- Suitable for repairing a derailleur rather than a complete replacement.
- Colour: black.
An essential component for securing the derailleur
The Y5ZV98010 unit is located at the junction between the rear derailleur and the derailleur hanger on the frame. It is therefore essential that it remains in good condition to ensure a rigid mounting and correct positioning of the derailleur.
A damaged, distorted or loose part may disrupt the derailleur’s positioning relative to the cassette and impair the quality of gear changes.
Shimano This part is specifically identified as the ‘Bracket Axle Unit’ in the official exploded view of the RD-R9150.
Compatible with the Dura-Ace Di2 RD-R9150 Shimano
Part number Y5ZV98010 is specifically associated with the RD-R9150, a Dura-Ace Di2 11-speed electronic rear derailleur. The Shimano parts catalogues list the RD-R9150 as a compatible model.
It is therefore recommended that you check the part number on your derailleur before placing an order.
Please note the mounting type
The term ‘standard type’ is important.
The RD-R9150 can also be fitted using a Direct Mount system. In this configuration, Shimano uses a different part, part number Y5ZR69000 – B-Axle 2.
So do not confuse:
- Y5ZV98010: support axle unit for standard mounting;
- Y5ZR69000: B-2 axle for Direct Mount installation.
A cost-effective solution for repairing an RD-R9150
Replacing this small part means you can avoid having to replace the entire derailleur when the problem is limited to the axle or the bracket.
This is particularly relevant for a Dura-Ace Di2 R9150 groupset, as it is worth keeping the components if they are otherwise in good condition.
Before replacement, it is advisable to also check the derailleur hanger on the frame. A bent or damaged hanger may be the cause of misalignment and will not be corrected by replacing the axle unit.
