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Honda FireBlade Discussion of the Honda CBR 900RR, Honda CBR 929RR, Honda CBR 954RR, and Honda CBR 1000RR Motorcycles.

Thread: SS Brake Line on Rear...not recommended? Reply to Thread
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  Topic Review (Newest First)
04-28-2015 8:12 PM
Suzuki_Don
Re: SS Brake Line on Rear...not recommended?

Quote:
Originally Posted by IanDoohan View Post
I think we're all on the same page.
Yes I think so Ian.
04-28-2015 5:46 PM
IanDoohan
Re: SS Brake Line on Rear...not recommended?

Quote:
Originally Posted by Suzuki_Don View Post
I was just trying to make the point, maybe unsuccessfully, that the higher torque figure in the workshop manual (25 lb/ft) is for steel banjo bolts and steel sealing washers and if people were using this torque figure for banjo bolts made of some other material then that could be the reason for them snapping.

That's all.
I think we're all on the same page.
04-28-2015 5:43 PM
Suzuki_Don
Re: SS Brake Line on Rear...not recommended?

I was just trying to make the point, maybe unsuccessfully, that the higher torque figure in the workshop manual (25 lb/ft) is for steel banjo bolts and steel sealing washers and if people were using this torque figure for banjo bolts made of some other material then that could be the reason for them snapping.

That's all.
04-28-2015 9:47 AM
IanDoohan
Re: SS Brake Line on Rear...not recommended?

To try and clarify here I think we're are comparing steel to aluminum. In my experience with aluminum banjos and aluminum bolts, 14-16 ftlbs were recommended as maximum torque. Steel bolts and banjos were increased to a maximum of 24 ft lbs. OEM steel for Honda's in the manual calls for 25 ft lbs. I wouldn't sweat 1 ft lbs on the steels. But for aluminum bolts I would stick to the max of 14. You don't want to stretch those hollowed out, thin walled aluminum bolts or risk snapping the head off. My HEL lines recommend 14 as minimum and 24 as maximum. They are steel. And they (HEL) try to deter you from aluminum for a number of reasons. I never had any issues in the past with aluminum, except for fading anodization. I don't mess around with my brake lines, I go to the recommended max for peace of mind and no leaks.

As for Titanium bolts? I'll never know But I would imagine it would be tough to snap one even at 25 ftlbs. Unless they're poorly made. There's Doohans 2 cents worth of nothing
04-28-2015 4:53 AM
Suzuki_Don
Re: SS Brake Line on Rear...not recommended?

Look in the Honda Workshop Manual. It's there for ALL to see. 900, 929, 954.
04-27-2015 11:39 PM
Mikeo
Re: SS Brake Line on Rear...not recommended?

Quote:
Originally Posted by Suzuki_Don View Post
I think you'll find on Hondas it's more like 25 lb/ft
I don't see what brand of motorcycle has to do with a part used on all brands, but this is what Galfer has as an install guide for a Honda CBR600RR.

This was the first one to pop up on my google search.


http://www.galferusa.com/brake-line-...structions.pdf
04-27-2015 11:02 PM
Suzuki_Don
Re: SS Brake Line on Rear...not recommended?

Quote:
Originally Posted by Mikeo View Post
I don't see how people break banjo bolts, they are only tightened to something like 14 ft lbs., and if aluminum banjo bolts don't break when properly tightened, I wonder how much force was used to break Ti banjo bolts...


Ian, here is another teaser, Spiegler line and Ti bolts
I think you'll find on Hondas it's more like 25 lb/ft
02-06-2015 9:41 PM
Mikeo
Re: SS Brake Line on Rear...not recommended?

Quote:
Originally Posted by jondog9 View Post
Mikeo, this is where I got confused.
You're right - he didn't say anything about Ti washers afterall. My bad.
02-06-2015 7:12 PM
jondog9
Re: SS Brake Line on Rear...not recommended?

Quote:
Originally Posted by socci View Post
Found it.
https://www.fireblades.org/forums/aft...hey-worth.html


"Hi,
Since Al washers are uncommon where I live, I don't like Ti banjo bolts (they breaks easily while tightening cooper washers, if you got a matter to reassembly the lines/master cylinder).
Secondly I would not advice to use braided line for rear brake. I got one exploded under hard braking, because of high pressure pulsation, while rear wheel is jumping under the hard breaking. I like rear brake stock line capability to expand/absorb those pulses.
Just my 2cnt."
Mikeo, this is where I got confused.
You're right - he didn't say anything about Ti washers afterall. My bad.
02-06-2015 6:56 PM
Mikeo
Re: SS Brake Line on Rear...not recommended?

Quote:
Originally Posted by jondog9 View Post
I don't understand why on earth one would want Ti banjo washers anyway.
The aluminum is soft and acts like a rubberwasher to seal between the fittings and the bolt.
Does Ti do that? I was under the impression the answer would be a resounding no.
I don't see where he is talking about Ti washers, but yeah, I would stick with aluminum or copper washers there.
02-06-2015 6:55 PM
IanDoohan
Re: SS Brake Line on Rear...not recommended?

Quote:
Originally Posted by Mikeo View Post
I don't see how people break banjo bolts, they are only tightened to something like 14 ft lbs., and if aluminum banjo bolts don't break when properly tightened, I wonder how much force was used to break Ti banjo bolts...


Ian, here is another teaser, Spiegler line and Ti bolts
I'm gonna get dry mouth from all this drooling.
02-06-2015 6:52 PM
jondog9
Re: SS Brake Line on Rear...not recommended?

I don't understand why on earth one would want Ti banjo washers anyway.
The aluminum is soft and acts like a rubberwasher to seal between the fittings and the bolt.
Does Ti do that? I was under the impression the answer would be a resounding no.
02-06-2015 3:24 PM
socci
Re: SS Brake Line on Rear...not recommended?

Appreciate the replies. I figured that much, but just wanted to make sure before I ordered the rears.
02-06-2015 2:41 PM
Mikeo
Re: SS Brake Line on Rear...not recommended?

I don't see how people break banjo bolts, they are only tightened to something like 14 ft lbs., and if aluminum banjo bolts don't break when properly tightened, I wonder how much force was used to break Ti banjo bolts...


Ian, here is another teaser, Spiegler line and Ti bolts
02-06-2015 12:29 PM
jondog9
Re: SS Brake Line on Rear...not recommended?

I've had both on my RC51, I could hardly tell the difference. Placebo?
I did end up adjusting the angle of my brake lever so that I have to extend my ankle a little beyond comfort in order to lock the rear tire so as to avoid that possibility. That way, I can easily cover the rear brake a tiny bit with out worrying too much about using to much brake. If that makes sense.
Had the steel line on for 3+ years now.


Quote:
Originally Posted by wolf10w View Post
Since they're so rare, I wonder what a standard crush washer goes for on the black market in Rhode Island?
I know a guy who knows a guy whose sister's husband has a line on them.
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