Brake adapter for blue or gold dot caliper and big rotor on RD

[SoCal250]

My only issue is this bracket may need some tweaking. It has the caliper hanging the pads about 1/3 off the rotor, and concentrates all the heat on the top half of the rotor.

Seems a little strange that your caliper is not aligning with the rotor contact surface since you're using the same bracket as others. Is is possible your rotor is smaller (298 vs 320)? The drill pattern looks a little different than other FZR rotors.

[Vintagewannabe]

My only issue is this bracket may need some tweaking. It has the caliper hanging the pads about 1/3 off the rotor, and concentrates all the heat on the top half of the rotor.

Seems a little strange that your caliper is not aligning with the rotor contact surface since you're using the same bracket as others. Is is possible your rotor is smaller (298 vs 320)? The drill pattern looks a little different than other FZR rotors.

It looks from measuring while on the bike its around 290. 
I am confused on the size because looking up the part numbers from yamaha, it is the same part number from 89-99 on the FZR600.
Same with checking on ebc.
Others still say there are different sizes.

[Vintagewannabe]

Now that I look close, my rotor has 4 of the small triangle cutouts on the center, where the first pic and others have 5, like a star shape.

[SoCal250]

Now that I look close, my rotor has 4 of the small triangle cutouts on the center, where the first pic and others have 5, like a star shape.

I think I figured it out. It appears you have a FZR400 rotor not 600.
The 400 uses 282 mm rotors (spec from my parts book: 282 x 4 mm), while the FZR600 uses 298 mm
Here's a photo of my front wheel with 1WG rotors

[Vintagewannabe]

Welp, at least this may help keep someone else from making the same mistake 
I'll be ordering another this week

[SoCal250]

this is an adapter for a blue or gold dot caliper to be used on aircooled rd250/350/400 front forks. use at own risk. Mine is made of 6061 aluminum. you will need to run an fzr600 or like rotor, and make a **EDIT**13mm OR 1/2" spacer behind the rotor. (center of a stock rd rotor hat also works)

Mark, have you always run FZR600 rotors with your adapter setup or did I read somewhere on here that you had also run a FZR1000 disc at one point? Just curious if you had made a different adapter design for the larger 320mm disc vs. the 298mm from the 600.

I'm seriously considering upgrading the front brake on my RD400F but I'm not sure if the current adapter design posted above with work on the Daytona. I still need to do some mockup work with a FZR rotor and R6 caliper and take measurements.

[m in sc]

its for the 'smaller' rotor. same one on the tzr i have

[SoCal250]

its for the 'smaller' rotor. same one on the tzr i have

Thanks.
I let you know what I find out from my experiments with the R6 caliper & FZR600 rotor on the 2V0 forks & front wheel.

[Vintagewannabe]

Got the new rotor in, problem solved! An amzing upgrade, very worth it.

[pdxjim]

Got the new rotor in, problem solved! An amzing upgrade, very worth it.

I would suggest swapping your fork legs to put the caliper behind the left side.

This is a common mod to lower the CG, and reduce the swing weight.

... and look better.

[Evans Ward]

^ very nice looking adapter too! 

[Vintagewannabe]

Got the new rotor in, problem solved! An amzing upgrade, very worth it.

I would suggest swapping your fork legs to put the caliper behind the left side.

This is a common mod to lower the CG, and reduce the swing weight.

... and look better.

I dont want to lose my speedometer, and original gauges