Front Brake Reservoir to Master Cylinder Hose

[gstallons]

7 hours ago, Pressureangle said:

<sigh> McMaster-Carr has it as cheap as anyone, sure to be quality, and ridiculously expensive shipping. Well, I guess I can just replace all the hoses on everything I own. 

https://www.mcmaster.com/catalog/131/163/9776T31

I use McMaster Carr. If that hose works w/brake fluid it will mention it. The shipping is not out of line. Order it one day and it is there the next. They seem to have EVERYTHING you order and it is top notch quality.

 I honestly wish everyone knew the only thing DOT 3,4 and 5.1 brake fluid is compatible with (other than water) is DOT 3,4 and 5.1 brake fluid and their rubber parts are compatible with . I was going to use a quick coupling on a brake system to find out I had to use a coupling for brake fluid systems.

[Pressureangle]

6 hours ago, Speedfrog said:

Why not just get the Brembo hose, that would eliminate the guesswork. 10 bucks for 1 meter(3.3ft for the metric challenged) you should have enough to cover a few bikes!  

That was my first thought, but a quick search of a half-dozen sources didn't turn any up that wasn't 'specialty hose' at great big prices and I didn't see any 'Brembo' OEM tubing anywhere. 

[Pressureangle]

3 hours ago, gstallons said:

I use McMaster Carr. If that hose works w/brake fluid it will mention it. The shipping is not out of line. Order it one day and it is there the next. They seem to have EVERYTHING you order and it is top notch quality.

 I honestly wish everyone knew the only thing DOT 3,4 and 5.1 brake fluid is compatible with (other than water) is DOT 3,4 and 5.1 brake fluid and their rubber parts are compatible with . I was going to use a quick coupling on a brake system to find out I had to use a coupling for brake fluid systems.

Deeper dive with Grok

 

ASTM D2000
Classification system for rubber products in automotive applications, specifying grades, types, classes, and optional tests for physical/chemical properties.
Yes
Directly relevant; includes automotive rubbers and allows line call-outs for fluid immersion resistance (e.g., via ASTM D471 tests on Reference Fluids like Fuel B or hydraulic oils, which correlate to brake fluids). Automotive seals/gaskets often use D2000 to ensure brake fluid compatibility.

The McMaster-Carr EPDM hose has the D2000 rating. I would have to request a full datasheet from McM-C to see if it has the EA-14 callout for glycol resistance, but it is required to claim a D2000 rating. 

[Scud]

Try a local dealer of any type of motorcycle that uses metric sizes. They probably have a roll of it and would gladly snip off a bit for a few dolllars.

[Pressureangle]

1 hour ago, Scud said:

Try a local dealer of any type of motorcycle that uses metric sizes. They probably have a roll of it and would gladly snip off a bit for a few dolllars.

Harumph. Well I'll be in there today, as the front wheel valve stem has a severe leak at the rim. <sigh> should probably do both wheels. 
I'll ask.

[Speedfrog]

4 hours ago, Pressureangle said:

That was my first thought, but a quick search of a half-dozen sources didn't turn any up that wasn't 'specialty hose' at great big prices and I didn't see any 'Brembo' OEM tubing anywhere. 

You’ve checked the link posted earlier?  Listed as  “Brembo High Performance Spare Part “.

23 hours ago, Speedfrog said:

@docc Would it be this ==> Brembo Reservoir Hose

 

 

 

[Pressureangle]

1 hour ago, Speedfrog said:

You’ve checked the link posted earlier?  Listed as  “Brembo High Performance Spare Part “.

 

 

 

Yes but that came later.