Sram brake fluid

[NickGM]

HI Folks,

My sram guide brakes need a bit of a bleed, and on the brake it specifies "Only DOT 5.1 DOT 4", which I assume to mean that either of those is OK, but nothing else. Both are pretty readily available from motorbike shops, so my question is, is there any difference between the two in terms of performance? All I know is that 5.1 has a higher boiling point (and higher price). 

 

And actually, while I'm asking - I may need to give my reverb a bleed as well. From what I've read, "rockshox reverb oil" is really just repackaged 2.5wt suspension fork oil. Can anyone confirm this?

 

Thanks

[BaGearA]

Not sure on the brakes

 

Seat post yes , any 2.5wt suspension oil will work

[m-squared]

You can use dot 4 or dot 5.1

 

It makes no difference to performance.

 

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[PURE]

Go to Full Throttle and buy Dot 5.1. I also saw some tins at Northcliff cycles in December.

[PeterF]

Use Dot 5.1, it has the added benefit of being non corrosive if I remember correctly.

[JXV]

HI Folks,

My sram guide brakes need a bit of a bleed, and on the brake it specifies "Only DOT 5.1 DOT 4", which I assume to mean that either of those is OK, but nothing else. Both are pretty readily available from motorbike shops, so my question is, is there any difference between the two in terms of performance? All I know is that 5.1 has a higher boiling point (and higher price).

 

And actually, while I'm asking - I may need to give my reverb a bleed as well. From what I've read, "rockshox reverb oil" is really just repackaged 2.5wt suspension fork oil. Can anyone confirm this?

 

Thanks

DoT 5.1 has higher boiling point. Intended for high performance cars. MTB brakes shouldn't be getting that hot.

 

Normal DoT 4 is just fine. make sure it is freshly opened or has been stored in a well sealed container.

 

Avoid DoT 5 which is a silicone based fluid. It will damage your seals.

 

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[NickGM]

Thanks guys, that all adds up with some of the reading I did elsewhere online.