I've searched all over here trying to learn if anyone has figured out how to mount a 2-piston caliper on the stock fork. No luck yet.

Sure, there's the option of swapping to different forks and all that, but that's not what I want to do.

There's a fairly common Nissin 2-piston caliper used on various dirt bikes (and therefore compatible with wire-spoke wheels). I was hoping there was an adaptor bracket or something out there. Maybe one of you fab wizards can work something up.

I come from the non-cruiser world and have a thing about wanting more that merely adequate brakes. Silly me.

I agree with the stopping power needing help and keep looking for alternative solutions. If you haven't yet, going to a braided steel line helps a lot.

if anyones got a link to some i wouldnt be against trying to customize them on my bike. im a light guy and the brakes on the bike as not good, i dont see how you heavy guys do it. when my gfs on the back i gotta crank down and downshift pretty good when a light catches me. ill be the guina pig some might say

So you got me lookin'  (dern you anyway)

And I see a familiar 4 bolt pattern...  

Anybody with a 90-91 DR650 with a 4 bolt pattern?

measure the thickness, OD, ID and bolt circle diameter please?

I poked around the EBC online catalog. I learned their part number for LS rotors is MD3017LS. They say that's a 260mm rotor. The 90-91 DR is a 280mm rotor, number MD6076D.

As long as someone was making an adapter for DR calipers, they might as well make it so it fits the larger DR rotor.

OH SO CLOSE!

I got the left caliper from an SV650 (and some other models). It bolted perfectly to the fork leg. But with the wheel and rotor in place... DANG! The rotor diameter is too large.



So if I want to continue down this road, I need to find a smaller rotor. But since the LS650 uses and odd 4-bolt pattern, that limits rotor choices. So I might have to find the right size rotor first then find a hub that works with it and the axle.  

An entire front end swap is starting to look like a viable alternative.  

verslagen1 wrote on 12/24/10 at 13:05:18:




Cha- CHING,, Looks like a lot easier answer, cheaper.


Looks almost like the pistons are gonna be real close to the size of the swept area on the disk. Thos pads gonna be all on the swept area?

LANCER wrote on 12/24/10 at 14:40:01:


That occurred to me. I'm guessing about a centimeter would need to come off. But the reason for trying to go with 2-piston calipers is to increase braking force. Cutting away rotor area sort of runs counter to that goal. I'll have to think about it.