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Old 11-07-20, 02:17 PM
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gus6464
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Check your Shimano GRX brakes

My GRX 800 calipers have had a super slow oil leak since I installed them and got tired of it and took it to my shop and they said the leak is from the pistons. Apparently this has been an issue with the first batch of GRX800 calipers out of Shimano. No biggie though as Shimano is just replacing them no questions asked. So as a PSA check your calipers if you have them for any sign of oil.
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