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h_mose

Member

• Nov 26, 2016

• #1

Hi, looking at dual front brake calipers and wondering which input port goes to which piston? or are they both linked? also would like to know which bleed nipples (there are 3) go to which piston side?
any help is much appreciated.

 

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Nigel1943

Active Member

• Nov 26, 2016

• #2

A picture would help. Cant believe there are 3 bleed nipples.

 

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h_mose

Member

• Nov 26, 2016

• #3

 

discool

Well-Known Member

• Nov 26, 2016

• #4

Three bleed nipples is because you have dual circuit braking, i.e. two braking circuits in the front calipers.

Primary circuit which is also the rear brakes is the lower pipe into the caliper. Secondary circuit which is front brakes is the upper pipe into the caliper.
For bleeding, the bleed nipple above each pair of pistons are done together, and then do the single caliper bleed nipple.

Some of us don't need pictures... Next

 

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h_mose

Member

• Nov 26, 2016

• #5

discool said:

Three bleed nipples is because you have dual circuit braking, i.e. two braking circuits in the front calipers.

Primary circuit which is also the rear brakes is the lower pipe into the caliper. Secondary circuit which is front brakes is the upper pipe into the caliper.
For bleeding, the bleed nipple above each pair of pistons are done together, and then do the single caliper bleed nipple.

Some of us don't need pictures... Next

Click to expand...

Yeah but that's not what I'm asking, I want to know which bleed nipples strictly belong to which pistons ?

 

discool

Well-Known Member

• Nov 26, 2016

• #6

The nipple above the piston does that pair that's why you bleed both sides together. Possibly

 

Last edited: Nov 26, 2016

discool

Well-Known Member

• Nov 26, 2016

• #7

but then If you mean which nipple does the secondary and which does the primary, I don't know, that's something I've never needed to know.