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Old 11-10-20, 08:42 PM
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Originally Posted by gus6464 View Post
Yes so my shop just called me back and my left shifter is also being replaced by shimano because of that same exact issue. The shifter after a while would lose pressure and it's because the seals in the master cylinder are shot.

They said Shimano is not arguing anything and is sending them everything as they currently have grx parts in stock in the US warehouse. I would go back to the shop and have them check it and call Shimano.
That's the surprising part of this thread.
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