72 shovelhead brakes - Page 2 - Harley Davidson Forums: Harley Davidson Motorcycle Forum

DeeDay · 12-08-2012, 07:23 AM

Quote:

Originally Posted by SCHMIDTYS

Is 5.1 compatible with 5 ???

When redoing my '76 Ironhead, my research said 5.1 is absolutely NOT compatible with dot 5.

...Due to Dot 5 being silicone based or something .

I look forward to others opinions, though.

JayD · 12-08-2012, 08:08 PM

Quote:

Originally Posted by SCHMIDTYS

Is 5.1 compatible with 5 ???

No two different bases...stay with the same base for brake fluid and you cant go wrong...imo.

Quote:

Compatibility All types of hydraulic actuated brakes and clutch systems (not to be used with silicon and mineral-based brake fluids).

here's a little data for you... different bases and compatibility