What is Lobster?

Let’s say you ride Shimano hydraulic brakes. It makes no difference whether it’s basic or a top-end, all of them are suffering from the same problem. The master cylinder isn’t sealed, so dirt and dust can easily contaminate the system. Dirt particles settle between the piston cuffs and the cylinder walls and gradually scratch them, which is the common cause of oil leaks. In turn this leads to degrading braking power and inconsistent brake feel.

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