quick question, what fluid for a Pro-stop disc brake?

[jonnyboy666]

mineral or dot? i have the manual to do a bleed on a pair of brakes but it says "mountain cycle brake fluid only" but doesn't say what it is.

any definite idea?

 

[Stretch79]

Dot 4 or 5.1 usually i believe

 

[jonnyboy666]

@Stretch79 are you 100% sure?!! it's a customers bike and i've never done nthem before!!

 

[Stretch79]

@Stretch79 are you 100% sure?!! it's a customers bike and i've never done nthem before!!

What are the brand of brakes?

 

[mk one]

Not sure, but have seen reference to people using Shimano Mineral.

@yakboy may be able to help having filled a few Pro-Stops, reference here to automatic transmission fluid which i think is mineral based -

https://www.retrobike.co.uk/threads/1992-san-andreas-mountain-cycle.408029/page-24#post-3374095

 

[jonnyboy666]

mountain cycle pro stop, i didn't realise before that these were cable actuated hydraulic brakes, the manual doesn't say what fluid it is

 

[yakboy]

Cable prostops use automatic transmission fluid

 

[jonnyboy666]

ok, so what is that?

 

[yakboy]

ok, so what is that?

It is what it says on the tin Any motor factors will stock it

 

[My_Teenage_Self]

I've already replied to Phil, but as above, MC used ATF. Most people started using Magura royal blood... I suspect you'll find them full of lovely bright green LHM +...