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Shimano Ultegra ST-6600 Return Spring - Left Hand - Y6K287100

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Questions & Answers (1) Q & A
For use with Shimano Ultegra ST-6600 STI Road levers.

This Left Hand Return Spring can also be used on the following STI Road levers:

- Shimano Dura-Ace ST-7803
- Shimano Dura-Ace ST-7801
- Shimano Ultegra ST-6603-G
- Shimano Ultegra ST-6603
- Shimano Ultegra ST-6600-G
- Shimano 105 ST-5603
- Shimano 105 ST-5601
- Shimano 105 ST-5600
- Shimano Tiagra ST-4503
- Shimano Tiagra ST-4501
- Shimano Tiagra ST-4500
- Shimano Sora ST-3400
- Shimano ST-2303
- Shimano ST-2300
- Shimano ST-R703
- Shimano ST-R701
- Shimano ST-R700

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

Genuine Shimano replacement part.
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Questions & Answers (1)
Will This Work With Durance 7400 Sti Lever.
15 Jan 2016
Hi,I have a broken 7400 dura ace LH return spring.
I see these are nearly the same except the 7400 have an extra coin,4 instead of 3.
Do you think this will work?


SJS Customer Service:

Due to the age of your shifters there is no information regarding compatibility of parts available for it unfortunately, so we would have no way of knowing if this will fit or not. All I can recommend is taking a risk, trying it and hoping for the best.