Stahlbus for GP4-RX

[LOCKE]

I've never used Stahlbus Nipples, considered buying a pair when I overhauled my Calipers last winter, are they worth the money ?

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If you bleed your brakes often then they are worth every penny. Easy one man operation - open bleed valve quarter of a turn then pump lever until fluid has been flushed. No need to pump, hold, open, close, release, repeat!

[alex]

I was under the impression the smaller one was for the master cylinder?

BMW fitted mine. 2 front 1 rear.

They are brilliant when the lines are largely full of fluid...but painful with drained lines.

Best to refill without them in on a full drain and replace.

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[bmwbadboy]

BMW fitted mine. 2 front 1 rear.

They are brilliant when the lines are largely full of fluid...but painful with drained lines.

Best to refill without them in on a full drain and replace.

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Alternatively you can use manual pump to suck fluid in, it's 25-30gbp off eBay. Also helpful when replacing MC

[stuartb]

Cheers, so they are basically a 1 way valve.

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[DrIoannis]

Front brake model

https://www.stahlbus.de/lng/en/bleed...u-natural.html