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Author Topic: M/c bore  (Read 7104 times)
topconker
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« Reply #30 on: January 06, 2013, 08:42:31 PM »

Sorry to hijack the thread. I'm running a 19mm master using a AP M/M lever on the rears which have 22mm slaves.
Have been told I should run 16 or 17 mm master to gain the advantage I need as I can't use a foot pedal what with no right leg an all. Anyone know where I can get a M/C master with a 16 /17 mm bore?
Cheers,
TC
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scannerzer
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« Reply #31 on: January 06, 2013, 08:53:12 PM »

as is referred to as 5/8 in the tread is what your after 15.85mm
thats what i'm going to go for myself
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andyrennison
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« Reply #32 on: January 06, 2013, 09:00:55 PM »

glad to be of service Cheesy Cheesy Cheesy

Ha ha ha Smiley
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steven brock
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« Reply #33 on: January 06, 2013, 09:01:29 PM »

Triumph gt6

310520135357 on flea bay .. Smiley
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hunter
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« Reply #34 on: January 07, 2013, 02:36:08 AM »

http://www.ebay.co.uk/itm/310520135357?ru=http%3A%2F%2Fwww.ebay.co.uk%2Fsch%2Fi.html%3F_sacat%3D0%26_from%3DR40%26_nkw%3D310520135357%26_rdc%3D1
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I
nabsim
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« Reply #35 on: January 07, 2013, 01:42:49 PM »

Sorry to hijack the thread. I'm running a 19mm master using a AP M/M lever on the rears which have 22mm slaves.
Have been told I should run 16 or 17 mm master to gain the advantage I need as I can't use a foot pedal what with no right leg an all. Anyone know where I can get a M/C master with a 16 /17 mm bore?
Cheers,
TC

You can still use a foot brake if you want to, mount it on the left, that's what I normally do
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topconker
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« Reply #36 on: January 07, 2013, 02:59:31 PM »

Ah but my left foot operates the clutch.

The set up I have is:
Left foot = clutch
Left hand = front brake and gear lever, (VW trike with gear stick in centre consol).
Right foot = useless
Right hand + throttle and rear brakes

The AP racing master cylinder has a 19mm bore which I'm told is too big for the 22mm slaves on the back.
I have a stand alone brake servo that needs a vacuum either from the inlet manaifold or even a remote vacuum pump but not sure if that will help much.

Any help is much appreciated as I have to give the brakes a 2 miute warning before I need to stop !!!
TC
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Olds
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« Reply #37 on: January 07, 2013, 04:58:02 PM »

A lot of Japanese bikes of the 80s and 90s such as the xj900 with twin discs seem to use 5/8" master cylinders, though no sure if you would push enough volume of fluid to drive the rear cylinders of drum brakes.
« Last Edit: January 07, 2013, 05:05:23 PM by Old Newbie » Logged

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scannerzer
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« Reply #38 on: January 07, 2013, 07:51:38 PM »

would it be possible to use a cable from a cable type front brake lever to remotely operate
a 5/8 bore car type m/c mounted on the frame somewhere?? would that acieve what you need to do

Sorry when i read your post i thought it was a footbrake type m/c you were after
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andyrennison
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« Reply #39 on: January 07, 2013, 09:36:37 PM »

Could you make something to actuate the clutch when you squeeze your leg towards the centre of the frame ?
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nabsim
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« Reply #40 on: January 07, 2013, 09:57:51 PM »

You can get cable on handlebar to hydraulic, is it Hunter tat has this set up, I got bits to do it but haven't done yet.

In the past I have used a left hand clutch master cylinder for back brakes but that was on a single bike rear brake.

I use a left foot brake on the outfit with it mounted next to the left foot gear change lever. OAB on here uses a heel brake. Doesn't mean you can only use one thing with one foot Wink
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scannerzer
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« Reply #41 on: January 10, 2013, 11:20:49 PM »

ended up with this, I know it's not what everyone uses but it was available and cheap

http://i1056.photobucket.com/albums/t373/Eddie096/1EFD711E-6920-417D-8A76-71AFA0AD84E0-11812-000016129031F096.jpg
M/c bore


It's from a nissan teranno clutch master and is 5/8 bore fingers crossed it will do the job
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