300mm rotors?

[davesax36]

Could I run 300mm rotors without dying a terrible death the first time I pull out of the driveway?

I only ask because I'm trying to find the least expensive solution to this front wheel swap, and 300mm rotors are much easier to find with 80mm bolt spacing than 298s.

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[Fire-medic]

You could always have them turned-down, but that may cost you the difference in price. Slip a wire gauge into the caliper body to see what you have to work with. I'd imagine the fit is tight on the stock caliper/rotor setup.

 

[naughtyG]

As long as you get the right custom adapters to position the brake calipers appropriately there shouldn't be any problem.
Only thing is, has anyone done this kind of adapter yet?

 

[DMAN999]

If you mean these Chinese Wave Rotors:
http://www.ebay.com/itm/23100138736...X:IT&_trksid=p3984.m1423.l2649#ht_2573wt_1274
A lot of guys are using them without issue on 93+ front ends.
And some guys have used these (from tobyhuang2006):
http://www.ebay.com/itm/FRONT-BRAKE...3344&pt=Motorcycles_Parts_Accessories&vxp=mtr

 

[Traumahawk]

If you mean these Chinese Wave Rotors:
http://www.ebay.com/itm/23100138736...X:IT&_trksid=p3984.m1423.l2649#ht_2573wt_1274
A lot of guys are using them without issue on 93+ front ends.
And some guys have used these (from tobyhuang2006):
http://www.ebay.com/itm/FRONT-BRAKE...3344&pt=Motorcycles_Parts_Accessories&vxp=mtr

I use the EXACT same rotors on my 07...the only clearance issues that I had was between the bolts that HOLD the rotors to the wheel and the bottom of the forks. The stock rotors have a counter sunk hole so the bolts go in deeper. On these rotors I had .008 clearance between one rotor and the lower fork, and .005 on the other. I asked Sean if that was enough, and he said yes, as long as you don't have other issues like bad wheel bearings...etc.

 

[davesax36]

It's for an fzr wheel. I think I'm gonna stay with the cheap way for now and do the busa/320 mod later. Gotta get my wheel back from the shop and centered before I fix anything. I'll be shimming the rotors instead of the calipers so I don't have physics issues when I change equipment.

Thanks, Hawk.

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[Fire-medic]

I am using twin-pair opposed-piston Sumitomo 4-pot calipers from a '87-88 FZR1000 on my '93+ front end w/the 298 mm stock VMax '93+ front rotors w/no adapters & no issues. HH pads give me 2 finger braking. I have some 6-pot later-model FZR1000 brake calipers I haven't bothered to fit because I am satisfied w/the 4-pots.

It's for an fzr wheel. I think I'm gonna stay with the cheap way for now and do the busa/320 mod later. Gotta get my wheel back from the shop and centered before I fix anything. I'll be shimming the rotors instead of the calipers so I don't have physics issues when I change equipment.

Thanks, Hawk.

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[davesax36]

Are the fzr 6-pots the direct bolt-on to stock forks/rotor diameter?

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[Traumahawk]

Yes....the fzr 6 pots (which are also on the yzf-750...95 and 96 I think) are a direct bolt on for 93 and up.

Here are some pics. The first pics are with the stock rotors...and the last one is with the wavy rotors.

I like the 6 pot calipers with the stock master cylinder, because they don't engage right away (so you do have more lever travel)...so you have more feeling, and more sensitivity when braking.

 

[Fire-medic]

Both the 4 and 6-pot FZR1000 calipers are the same 100 o.c. spacing of the '93+ VMax sliders. A bolt-on change, and well-worth-it. The early R1 calipers are the same measurement, the "blue-plug" ones

Are the fzr 6-pots the direct bolt-on to stock forks/rotor diameter?

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[davesax36]

Yeah, I already have gold dots on there.

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[wildweasel_pt]

When chinese say 300 they mean 298... Its the same ****... Just make sure the fitment models they have listed. All the blue, gold or silver dots that are not radial are 100mm bolt spacing...

 

[gamorg02]

i thought so too fred, there is no 300mm with our bolt pattern afaik...

 

[davesax36]

Has anyone gotten slapped with big customs fees on China rotors?

 

[one2dmax]

No yet. My supplier declares them as "samples". But, it's hit and miss with customs. Either way for the price they have it still won't be a huge cost.

 

[Traumahawk]

I havent. My rotors came from Hong Kong.

 

[davesax36]

Sounds good. We'll see if my seller messes things up.

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[Olds Guy]

What is the difference between 93-later and 92 - earlier forks? What can I do to the 85?

 

[davesax36]

You can get plates to bolt on busa calipers and 93+ rotors.... That's what I did on the 86 project bike. Or you can get a kit from Sean to go to a single 320mm rotor and 6-pot (busa) caliper. That's apparently more brakes than we can use. Also, I gotta say go with racetech springs and gold emulators.

Oh, and the difference is the old ones are skinnier (40 or 41mm) and the newer ones are 43s.

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[one2dmax]

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