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Rim brake lever master piston…. O-RINGS!


DYAKOV

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Can anyone tell me the proper/original O-ring spec for both 13mm and 14mm pistons and where I can buy these in bulk (well, when I say bulk I mean 20x seals for a 14mm pistons and 20x seals for a 13mm piston)? Also are they all standard across different pistons e.g. does a 13mm trialtech piston use the same seals as a 13mm racing line or clean piston?

I know that there are different materials used for various applications, also there seem to be metric and imperial sizes. Generally 14mm pistons use a 10x2 o-ring, meaning that 13mm pistons should use a 9x2 o-ring, however are these rounded dimensions? Seems like different material o-rings come in slightly different dims as well. It’s just all too confusing to me, so I thought maybe someone on here has the intel…

Cheers,

Nas

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