Topic: CBR600 Rear Caliper Bracket

[Powderman]

Can anyone tell me how much difference there was between the CBR600f1 and the newer 2's, 3's, and 4's in the rear rotor and caliper arrangement? I am having difficulty finding an f1 caliper bracket. Will one from an f2, 3, or 4, work on an F1 caliper? Are the rotors different sizes? Are the axle diameters the same?

[MCRider]

Can anyone tell me how much difference there was between the CBR600f1 and the newer 2's, 3's, and 4's in the rear rotor and caliper arrangement? I am having difficulty finding an f1 caliper bracket. Will one from an f2, 3, or 4, work on an F1 caliper? Are the rotors different sizes? Are the axle diameters the same?

Someone here may know, but are you sure you've got the right forum? 

[Powderman]

I'm asking everywhere till I get an answer.

[dusterdude]

Im 99 percent sure 2 and 3 are the same,not sure about 1 and i would think the 4 is different.from what ive seen,4 stuff doesnt work on the earlier bikes.i have an f3 that i use to and will soon again drag race

[Powderman]

The F1 uses a 2 pot caliper and the bracket is secured with a stay rod.


The F2 has a single pot caliper that is stayed by a slotted bracket on the swingarm that a big tab slides in.


I think they both have the same size rotor (8.66", 220mm). What i would like to know is if the 2 pot caliper will mount on the F2 bracket. I would prefer the 2 pot caliper over the single. From there I have to fab a bracket stay anyways so it doesn't matter which bracket mount method I use.

[70CB750]

Your best bet is microfiche and lookup part numbers.  Did you try your local Honda dealer? 

[dusterdude]

Not sure about the caliper mounting,but the f2 bracket is identical to the f3 bracket

[Powderman]

I'm only concerned about the way the bracket and rotor go together. I'm mounting it on a CB400f so I have to weld whatever type mount I need onto the swing arm. I think the 87-90 2 pot caliper will bolt up to the F2-F3 1 pot bracket.

[Retro Rocket]

It looks close but i'm only guessing...

[Powderman]

I just scored a 2001 F4 caliper and bracket shipped for $17.50 off Ebay. Now I'll see if my 2 pot caliper mounts to and go from there. Thanks for the help.

I just realized I probably just wasted $17.50. I wasn't thinking that this bracket puts the caliper on the front side of the axle and will probably put it in the way of the shock. The CBR is a mono shock and doesn't have the clearance issue there. Live and learn. At least it wasn't an expensive mistake and for the price I can probably resell it at some point.

[dusterdude]

The f2/f3 bracket mount the caliper to the rear of the axle

[Powderman]

See, I am an idiot. I don't know what I was thinking. Now that I look at the pic that I posted you are correct. I tried to cancel the transaction but haven't heard back from them. I will contact them again and tell them to just let it ride. Either it works or it won't. It will have cost me $17.50 for the lesson, not too bad.

[Powderman]

I found a correct F1 bracket shipped for $19.83 so I just bit the bullet and got it.

[dusterdude]

Groovy,what are you putting this on

[Powderman]

Groovy,what are you putting this on

Putting it on this 77 CB400f:

[dusterdude]

Cool,im in the process of putting one on my 750,btw what are you using for a master cylinder?

[Powderman]

Cool,im in the process of putting one on my 750,btw what are you using for a master cylinder?

For the rear I got a whole CBR600f1 rearset with m/c and caliper for $49 shipped.



On the front I will use the stock CBR600f1 with the complete f1 front end.

[dusterdude]

Im using an f2/f3 master,got it mounted horizontaly on the frame.guess ill see how it works out

[Powderman]

Im using an f2/f3 master,got it mounted horizontaly on the frame.guess ill see how it works out

On what bike?

[Powderman]

Got the correct bracket in today and this nearly completes the CBR600f1 rear wheel swap. All that's needed now are the cush rubbers, a few spacers and a mount on the swing arm for the stay rod. I'm bending up a swing arm brace this week also.



Also finished up the mock up of the seat until I get foam next week and smooth out all the radius' and contours before making the mold.

[dusterdude]

Im using an f2/f3 master,got it mounted horizontaly on the frame.guess ill see how it works out

On what bike?

k1 750

[Powderman]

Im using an f2/f3 master,got it mounted horizontaly on the frame.guess ill see how it works out

On what bike?

k1 750

Got a pic of it?