R1 Caliper adapters

[Jerry]

Was looking at the R1 - R6 calipers for my XJ; any chance you could cut adapters for the XJ forks? Different mount than any of the XS 11s, for sure....

[Jerry]

Sorry, should have added that I would be glad to send you an XJ caliper for the bolt pattern.

[79XS11F]

Re: sorry guy

Originally posted by xschop
These are a perfect fit on the hub(after .5mm trimming of course) and sit right in the xs11' caliper. Plus these actually mimic the wheel pattern's 7 spoke.

What are those disc off and when you say .5 mm trimming are you referring to increasing the size of the mounting holes?
Rob

[pggg]

I'm jumping on this bandwagon too, my discs are 268mm XJ9, I was gonna 'butcher' my standard model XS calipers to drop them 10mm, but modern 4 pot calipers have to be the better option, I was eyeing up my spare alloy footbeg brackets to carve out brackets, but they're not the best shape for that, I can get some good Nissin 4-pots, will hacksaw out some alloy brackets from a chunk of alloy, will keep an interested eye on this thread..

[Dennyz]

R1 caliper contact

The R1 calipers pad depth is 1.375" from the outside edge of the XS rotor.

I thought the XJ has the same front brakes as the XS Specials. To be safe, I would need a fork, axle and wheel w/rotor to make a set of adaptors otherwise.

Anybody have experience with the XS MC on R1 calipers. I know first hand that the R1 MC on XS calipers is definitly different. My guess is 50% more breaking with 50% less effort.

[xschop]

thanks for measurement

thanks denny, And I apologize to excess11 for sounding harsh, I asked denny a question specific to my application. I could actually dremel tool the inside diameter of this rotor to fit the xs11 hub, with only .5mm to remove is what I was talking about if anyone is interested, these rotors weight less than half the xs11's rotors.

[excess11]

6 piston calipers

Check out this web page with a set of 6 piston calipers installed on a xs650. Has 2 piston on the rear also. This should work on the Xs11. Check page 1 and 2.

BRAKES What do you think!

[50gary]

I have been running an R1 M/C with 1978e Standard front calipers since I got the thing on the road. OEM rubber lines suck, haven't the $$ for real S/S lines yet. FWIW, I also use the R1 clutch and R1 grips, that way they all match, works well and looks so much cleaner to my eye. Adjustable lever on the brake. I'm working on a different rear caliper set-up right now, when I get that done then I'll get the three S/S lines.
Cheeers, 50gary

edit :Istil don't know how to post photos Yes I have a photobucket how did you post the pic of the 650 brake set up?

[pggg]

Gar, XS rear brake is PLENTY strong enough and rubber hose is better than braided hose on the back, a smaller disc and caliper setup on the rear gives better braking coz of better feel.

[50gary]

The reasons for changing the rear as well as the front are pretty much the same. Better performance, lighter unit,under the axle mounting (In my case) on the rear and much lighter dual piston rear caliper. At the risk of insulting XS owners the parts on these old bikes are rather "truck like" almost "harley like" but that is an insult ha ha. The S/S lines are better simply because they don't expand and they are lighter. The feel is in the touch (foot) and the ratio of the M//C to piston. also pad material, but that's another story. I rarely use the rear brake anyway. I'm also cutting down the dia. of the rear about .5" and drilling it.
Cheers, 50gary

[Dennyz]

I hear ya Gary, I am creating an XSR1. I like the classic look of my 'F' and the motor has the torque I like. But the suspension component are old, heavy and cluncky. Since R1 stuff is so cheep (eBay), I am slowly changing the stock stuff out.

[xschop]

pm'd

hey denny check your PM. I think your bracket will be a fit for these rotors...chop

[50gary]

http://http://[IMG]http://[/IMG]

[pggg]

Gar, the disc on this one is 240mm, the bracket is slightly wider than the XS bracket at the axle, it's a matter of the right spacers/spacing, but for the 20mm XS rear axle, this ZXR example won't fit as it's an18mm axle setup, there's likely ways around that, but a 20mm axle setup is always gonna be easier, the bracket swings on a wide needle bearing at the axle, that's a stock XS11 swingarm right side, the torsion bar connects to the XS bracket holder(cut short) with a drilled hole and splitpin.

[Dennyz]

R1 Front Rotors

I was looking at the R1 front rotors. It would be pretty easy to come up with an adapter to mount them to the XS wheel.

The adapter probably should be made out of steel over aluminum.