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Author Topic: Our "New" CX500  (Read 2980 times)
rozer
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« Reply #15 on: January 02, 2013, 10:15:28 AM »

Travman, how are the brakes on your bike? Any good?
We've replaced the master brake cylinder, new stainless hoses, and overhauled the calipers on ours.
Should improve performance but haven't been able to test it yet.
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Travman
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‘70 Guzzi, ‘73 Norton, ‘73 V7 Sport, ‘12 V7 Racer


« Reply #16 on: January 02, 2013, 03:58:13 PM »

Travman, how are the brakes on your bike? Any good?
We've replaced the master brake cylinder, new stainless hoses, and overhauled the calipers on ours.
Should improve performance but haven't been able to test it yet.

Did you ride your CX and get a chance to use your brakes before tearing your down?

For a vintage bike the brakes are decent on my CX.  The brakes stop the bike well enough.  My only complaint is that you can't use them like my modern bikes and really slam on the brakes if you need to.  If I do the front end will chatter, probably because the skinny little forks are flexing.  

There are two problems with most vintage bike brakes.  The first is that many vintage bikes are not in good shape because of some lack of maintenance issue or glazed brake material from lack of use, or worn out brake lines, or air in the brake fluid, or worn out cables, etc.  It sounds like you have gone through the brakes and replaced what is needed.  I've ridden several older bikes and mentioned how bad the brakes are and then the owner would say, "they are all like that".  The second issue is that vintage brakes are just not as good as new bike brakes.  I've ridden bikes from the early sixties through eighties.  There is a general evolution of better brakes and starting around the late early 80's there are some bikes with what I would consider good brakes especially if they have dual front disks.  I may try to fit a second disk up front if I can the parts from a later CX500/650 or GL650 with duals.  

I ride my friend's 1972 BMW R60/5 with drums front and back.  He has those brakes set up as good as they can get.  This CX feels like it stops a lot quicker than that bike because it has better brake feel, but actually they are pretty close.  That is the problem with drums.  Even when they are working well, they have no feel.  Once your are spoiled by disk brakes you won't want the feel of drums for sporty riding.  

My Darmah has the best brakes of any older bike I've ever ridden.  It has dual Brembos up front and another in the back with iron rotors.  I'm pretty sure these were the best you could get on a street bike at the time.  You have to use a lot of hand strength and the bike is fairly heavy, but the feel is great.  
« Last Edit: January 02, 2013, 04:00:01 PM by Travman » Logged
HotIce
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« Reply #17 on: January 03, 2013, 07:50:00 AM »

Sweet bike!
Never seen one around, and never seen such engine from Honda. Or maybe I have a short memory Cheesy
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rozer
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« Reply #18 on: January 03, 2013, 08:48:52 AM »

Travman,
Thanks for the very comprehensive disquisition.
I haven't had the chance to ride the CX before we tore it down.
However I was told by Bart, the owner, that the brakes were very poor.
As soon as we took them apart it was apparent why.
The brake lines were like balloons and the slave cylinder was full of corrosion.
We've sanded the pistons with a very delicate grained sandpaper and added new seals.
Unfortunately I didn't take pictures of the process to post on my website.
But I will try to write a comparison between the current setup and a modern equivalent.
We'll probably even cross-drill the brake discs at a later stage.
Regards.
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Dry Martini
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« Reply #19 on: January 03, 2013, 02:59:25 PM »

Travman,
Thanks for the very comprehensive disquisition.
I haven't had the chance to ride the CX before we tore it down.
However I was told by Bart, the owner, that the brakes were very poor.
As soon as we took them apart it was apparent why.
The brake lines were like balloons and the slave cylinder was full of corrosion.
We've sanded the pistons with a very delicate grained sandpaper and added new seals.

Why did you not replace the pistons, rather than just clean them up? Full rebuild kits are available. We are currently doing a full brake system rebuild on a 79 CBX. The master cylinder and calipers were bead blasted and all new seals and pistons.
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I feel sorry for people who don't drink. When they wake up in the morning, that's as good as they're going to feel all day. -Frank Sinatra
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