Dual disc options on z1 900

Buckeye73z1 wrote:

Jeff.Saunders wrote:

The Z1 Caliper is unique to the Z1. The bolt spacing on the mount is different from the KZ calipers. The caliper bracket is not symmetrical - so you need a RH side bracket or modify the LH bracket

Thanks, Jeff. That is what I thought and I appreciate the confirmation. This may be a stupid question, but how would I modify the LH bracket to make it a RH bracket? I really don't want to pay the $100 plus for the stupid bracket from Z1E.

Whaa HAA!! :laugh: :woohoo: :laugh:

Ehem, pordon me.

Buckeye73z1 wrote:

Let me just clarify that I have no problem with Z1E. I just don't want to pay $100 for a bracket (which they can legitimately charge because it is damn near non existent) because I'm too damn stubborn to swap out my lower forks or too hard headed to accept my single disc set up. I know I stuck my foot in my mouth big time on that last comment, but I did not mean it the way it came across on a re-read. My apologies for any insult (implied or stated) from my "speak first, think second" mentality.

OH believe me! You're certainly not the first one here!

:laugh:

ok I googled and found out the KZ 750 ran the 42mm's, I actually have the correct master cyclinder to go with this system but my drag bars arent allowing it to fit, back to the drawing board

I have a GPZ1100 Master (5/8, I believe) if you are interested. It will need rebuilt from sitting, but is in decent shape otherwise. I won't need it now that I'm sticking to my single disc set up...not positive if it will fit your drag bars or not.

Buckeye73z1 wrote:

I have a GPZ1100 Master (5/8, I believe) if you are interested. It will need rebuilt from sitting, but is in decent shape otherwise. I won't need it now that I'm sticking to my single disc set up...not positive if it will fit your drag bars or not.

got a pic ????

I'll take a couple of pictures of it tonight when I get home. It's easiest to email them because my digital camera is broken so I'll email the pics straight from my phone. PM me your email address and I'll send the pix this evening.

I also have a couple of KZ1000 (I'm pretty sure-I can double check) discs in so/so shape (would clean up well, just crusty from sitting) and one GPZ750 (again, I'll have to double check on that) caliper to go with it all. This was being run on Steell's 1980 KZ750G (well, plus another caliper :laugh: ) and he said he LOVED it.

Back in the day, KHI offered a factory kit to convert the Z1's front brake from single to dual disc system.

The kit included a matching right side caliper, and a matching rotor, and a larger 5/8" master cylinder, plus the necessary additional brake lines and fittings.

Perhaps such conversion would have been more popular had the cost not been almost half the price of a new Z1. :lol:

Good Fortune!

Wouldnt adding a modern sportbike caliper/rotor with a wider sweep area be the best conversion for braking? You could even use your stock MC right? Keeping the single rotor up front only larger. I see a lot of the kz superbike guys do it.

hal0tw0 wrote:

Wouldnt adding a modern sportbike caliper/rotor with a wider sweep area be the best conversion for braking? You could even use your stock MC right? Keeping the single rotor up front only larger. I see a lot of the kz superbike guys do it.

That would be ideal, but I'm trying to avoid fabrication work to my triple trees or anywhere else. Modern sportbike brake system installs usually require an entire front-end swap. I don't want to do that to my old Z1, but I'd like to pick up a garden-variety KZ 650 or 1000 basket case and build a 'fighter with an inverted fork front end (like OMR's AWESOME fighter build).

i agree with jeff the lighter more nimble feel i like better,, then the dual disc setup. but its your bike your call. iv always took weght off the frontend some how to get that feel

Buckeye73z1 wrote:

hal0tw0 wrote:

Wouldnt adding a modern sportbike caliper/rotor with a wider sweep area be the best conversion for braking? You could even use your stock MC right? Keeping the single rotor up front only larger. I see a lot of the kz superbike guys do it.

That would be ideal, but I'm trying to avoid fabrication work to my triple trees or anywhere else. Modern sportbike brake system installs usually require an entire front-end swap. I don't want to do that to my old Z1, but I'd like to pick up a garden-variety KZ 650 or 1000 basket case and build a 'fighter with an inverted fork front end (like OMR's AWESOME fighter build).

id suggest a 650 frontend with your stock z1 triple trees.
that way you can lower frontend just a little at same time,just make sure to lower rear to match