Shimano Dura-Ace ST-9000 Main Lever Support - Left - Y63X80010

Customer Reviews (2)
5 / 5| Write your review
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Shimano Dura-Ace ST-9000 11 speed shifter Main Lever Support.

The following are an "A" match which indicates that the parts are the same in materials, appearance, finish & size etc.

- Shimano Dura-Ace ST-R9120
- Shimano Dura-Ace ST-R9100
- Shimano Dura-Ace ST-9001
- Shimano Ultegra ST-R8025
- Shimano Ultegra ST-R8020
- Shimano Ultegra ST-R8000
- Shimano Ultegra ST-6800
- Shimano 105 ST-R7120
- Shimano 105 ST-R7025
- Shimano 105 ST-R7020
- Shimano 105 ST-R7000
- Shimano 105 ST-5800
- Shimano Tiagra ST-4725
- Shimano Tiagra ST-4720
- Shimano Tiagra ST-4703
- Shimano Tiagra ST-4700
- Shimano GRX ST-RX820-LA
- Shimano GRX ST-RX820
- Shimano GRX ST-RX810-LE
- Shimano GRX ST-RX810-LA
- Shimano GRX ST-RX810
- Shimano GRX ST-RX610
- Shimano GRX ST-RX600
- Shimano GRX ST-RX400
- Shimano ST-RS685

Genuine Shimano replacement part.

Note: Scrolling down the page will take you to the associated parts related to this shifter & their availability
Product Reviews (2)
Questions & Answers (3) Q & A
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Associated Components
Part Number
Product Reviews (2)
Overall Product Rating 5 / 5
So Important
By Andreas
17 Mar 2022
5 / 5
I recommend this product
Tiny little thing with big impact !
Without this piece shifting does not work.
Happy to receive this rare spare parts via sjs…
Funny thing.
By Ufuk Serim Arslan
06 Sep 2018
5 / 5
I recommend this product
ConsKind of pricey.
I bought a new one because, the one miraculously has fallen or broken off i dont know, it wasnt there.
Questions & Answers (3)
Will this product be back in stock?
12 Jun 2022
ETA is end of 2022

JK 13.06.22
Can I use this with shimano 105 r7000 left lever?
13 Jul 2019

these levers aren't listed as being suitable for use with this product so it is doubtful that they would work.

Main lever support interchangeability between groupsets
23 Dec 2017
Hello, are the main lever supports Y-63X 80010 (Dura-ace, Ultegra, 105, Tiagra) and Y05U00100 (Sora) interchangeable?

They look pretty similar. The latter one did not have photo available, but the right hand version (43278) has the photo and it looks rather similar to the Dura-ace's one.
Hi there,

No they are not interchangeable, using is there easiest way to source the rebuild parts for Shimano products.