Brake line wrench size

Information and questions on GL1500 Goldwings (1988-2000)
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Posts: 19
Joined: Wed Jun 05, 2019 11:58 pm
Location: Wasilla, Alaska
Motorcycle: 1997 GL1500SE

Brake line wrench size

Post by ActionMatthew »

Hello all -

I'm doing the dreaded rear master cylinder removal on a GL1500 (1997). I'm working on the top of the cylinder, still in the bike, and I have the banjo fitting off, but the brake line behind that one - the solid line that looks more like a conventional brake line you'd see on a car/truck. Anyways, I am having a hard time getting a good grip on this, and am contorting my hand to do so. I've decided to go for a line wrench approach before I round it off - and wonder if anyone knows the size on that fitting by chance. I'll snap a picture if it helps.

Thank you much


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Re: Brake line wrench size

Post by virgilmobile »

No clue but you could "test fit" a box end wrench to find out.
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Erdeniz Umman
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Location: Ankara Turkey
Motorcycle: 2000 GL1500SE

Re: Brake line wrench size

Post by Erdeniz Umman »

I didn't understand which part you asked, but this link may help. ... r-cylinder
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Location: Glastonbury,CT
Motorcycle: 1988 GL1500

Re: Brake line wrench size

Post by ct1500 »

I forget the size (10mm?) but tubing wrenches and/or crowfoot flare is your friend here. Give it some penetrating spray then tighten a bit before trying to unscrew, that will often times break the corrosion between nut and line so the line does not twist and bend, a touch of heat might also be advisable.

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