Author Topic: Dual Rotor vs single  (Read 1148 times)


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Dual Rotor vs single
« on: May 11, 2006, 09:53:05 AM »
For those with 82's who have done all the brake mods and then ended up going to dual disks, how big of a difference was it.  I have new pads, steel line etc, but the braking still isn't as good as i wish it was.  Did going to dual rotors make a huge difference?
1982 Yamaha XZ550
1995 Ducati M900


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Re: Dual Rotor vs single
« Reply #1 on: May 11, 2006, 11:07:19 AM »
I still have the single disc myself with the SS brake line. The brake line was an improvemt but not by much. I would like to upgrade too. However, I would probably be more impressed than you because you have one of those fancy stoppie machines (monster). It has to be hard getting off the monster then comparing the Vs braking to it.

I was thinking about the fork brace thing for those of us who live in the straight and narrow world. It seems that a fork brace would help not only stabilizing the forks in curves but in a hard stop situation too. If I really bare down on the brakes at around 55 the bike will make a bit of a left hand drift. Fork twist?

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Re: Dual Rotor vs single
« Reply #2 on: May 11, 2006, 11:51:53 AM »
The duals are nice, I am running duals on blackie, with SS brake lines, and a master cylinder from a FZ6, and the stopping is good (well... as much as to be expected from a single caliper brake).  But on my single, I rebuilt the Master cyclinder, and rebuilt the brake caliper, installed a SS line, and it stopped much better than before. 
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Re: Dual Rotor vs single
« Reply #3 on: May 11, 2006, 12:37:05 PM »
My conversion from single to duals was from the entire original single setup with rubber line to duals with stainless lines and a master cylinder from an 83 V.  Didn't have the single stainless line as a comparison.  The duals are much more responsive but I was never sure if that was due more to the stainless line or the increased brake swept area.  It doesn't stop nearly as well as my friend's GTS1000 (nothing will!) but it is a significant improvement over the single rotor.  Also, bleeding the brakes properly is difficult, but that makes a huge difference as well.  Speedbleeder(s) and a vacuum source to pull the fluid through the system worked well for me.  I use a large veterinary supply syringe & some tubing to pull the fluid through.  Cheaper than a "Mighty-Vac" and works well.

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