Honda Disc Brakes: Ditching the hard line

66replica

The Wrecking Crew
DTT BOTM WINNER
I've got a stainless line with banjo fittings on both ends. I'd like to ditch the hard line. Is it possible to use a short banjo on the caliper side? The banjo bolts I have are too long currently but I may be able to find something shorter.
 
Shouldnt be an issue. As long as its made for brakes and all the threads are the same, the size of the bolt shouldnt make a difference.
 
I have heard of people doing it using a new copper washer on the caliper side. They say there is enough of a flat there to do it. Personally I just bought an adaptor (metric to AN-3). I haven't bought my hoses yet but from here they are just off the shelf units you can buy in any length you want. From there you just buy the banjo in the bend you need for the other end along with a long bolt in the stock junction that also holds the brake light (pressure) switch.
 
I tap the cone fitting 4mm and remove it, then use a standard length banjo bolt.
The hole may need tapping 10x1.25 as threads are 'short' on some calipers
 
i rummaged around and found a crush washer that had a slightly smaller outside diameter than the usual ones (you could probably file the edge of a normal one)... it pressed into the recess in the caliper to flush the top of the threads. i checked the length of the banjo bolt and it seemed like it wouldn't bottom out, but in an abundance of caution i put an extra crush washer on. not everyone has a suitable tap like pj! ;)
 
Thats the line I've got on my bike. It is of excellent quality, and I like the fact that it eliminates the need for a brake light switch (or some sort of junction) if you have one on your master cylinder.
 
I made a new bolt from a stainless steel Allen bolt.
Only slightly shorter than a stock bolt ( I made an extra short one as well)
CB378frontbrake.jpg
 
66, do you know if that single
Line will work on a 360? I bought the two line kit but now want to do away with the junction and hard line
 
Folks, I don't know if you all understand this or not but virtually any brake hose part you can immagine can be had in the aftermarket so you can build any sort of custom system you want. Braided hoses are available in lengths in 1" increments with female connectors on each end. Then you can buy any kind of fitting you want to put on the end - there are thousands of them available from companies like Goodrich and Russell., you can see one of them in the photo above where an after market (stainless) banjo was put on an off the shelf (braided stainless) hose. End fittings, things like banjos or splitters or pressure switches are reasonably priced, usually $5~15 each with only two or three required per bike. Hoses are inexpensive too, normally costing something like $1 per running inch, so a typical twenty inch hose might cost you fifteen or twenty bucks.

Hints: The size you want is AN-3. You can interchange one companies hoses with another companies' fittings. When you buy braided lines make sure you get a set that is plastic coated. If you don't that hose will take the paint or powder coat right off of any frame part it touches - it is incredibly abrasive and just normal riding vibrations are enough to cause it to destroy anything it touches. Also, when you order your hoses buy them all from the same place and buy them all at once. There are subtle variations in the color of stainless lines and if you mix them up it usually looks like pure hell. Don't over-tighten fittings!
 
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