R1 wheel conversion problem

[jumjum01]

Hi.

When installing the R1 rear wheel on my Gen1 busa, I noticed that the rear brake pads does not brake on all of the brake disc. There is 10mm on the inside of the disc that the pads cannot "reach". The caliper cannot be moved closer towards the center of the wheel since it will rub against the wheel. I know that the busa disc is 240mm and R1 is only 220mm, which causes the problem. I cant find any disc rotor that will fit. Has anyone solved this problem?

 

[Berlin Germany]

one way could be to download the TRW catalogue and surch there a fitting disc that has fitting values
dia outer / inner, etc.

i found one s. years ago - see att. - perhaps it helps

 

[Dnyce]

Sae outlaw makes one I think.

It’ll still lock up the rear the way u have it tho

 

[greg3852]

I never worried about it when I had my R1 wheels. They still stopped just as well.

 

[Hayabusa Wannabe]

Sae outlaw makes one I think.

Found that:

R1 wheel conversion rotor for Hayabusa 99-07 models

Rear brake rotor for gen one hayabusa (99-07) when using R1 wheels. These are made from stainless steel and will bolt onto the R1 wheel and use the stock busa rear caliper Wave design helps keep the weight off while looking great.

saeoutlawperformance.com

I was not going to post it as it seems to have the same problem as everything else in this stupid economy: Back-ordered.

 

[Dnyce]

Found that:

R1 wheel conversion rotor for Hayabusa 99-07 models

Rear brake rotor for gen one hayabusa (99-07) when using R1 wheels. These are made from stainless steel and will bolt onto the R1 wheel and use the stock busa rear caliper Wave design helps keep the weight off while looking great.

saeoutlawperformance.com

I was not going to post it as it seems to have the same problem as everything else in this stupid economy: Back-ordered.

Plus the oem one will stop it better than the sae one even with the 5mm missing

 

[jumjum01]

thanks for your replys. TRW dont sell brake disc to required specs. Early gsxr1000 K1 rear caliper should fit the 220mm disc (read somewhere in a forum post). I might just stick with the R1 OEM disc and busa caliper for now, brake power is decent, and yes it will lock up :-) Front calipers pistons where stuck one side and are now rebuild. Damn they are a bitch to bleed, no bubbels bleed out anymore, but they brake lever is still a little spongy.
Weight savings on R1 vs. busa wheels:
Front wheel: 970 grams
Rear wheel: 1980 grams
Custom axle: 138 grams
Total: 3.088 grams

 

[Dnyce]

That’s pretty cool, I didn’t know the k1 gsxr would fit. Makes it easy for me when I do it lol thanks for that info

 

[jumjum01]

R1 rear wheel swap, anyone found a 240mm rotor to fit R1 bolt pattern?? | General Bike Related Topics

So i got both front and rear R1 wheels fit now, took it for a spin, ETC only thing I'm not happy with is the 220mm rear R1 disk with my oem busa hanger thats set for a 240mm rear disk so only half the pad is riding on the rotor. Has anyone found a OEM or aftermarket 240mm rear disk that has...

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