R1/R6 RD350 front disc conversion questions

[Scuffed98]

Sorry if this has been covered a million times already.
I found the info about converting the front brakes with R1/R6 components. So does the R1/R6 rotors just bolt on to the stock rims or do I need spacers/adaptor plate to make it work? Does it matter what year of R1/R6 I take the brake components from? Would it be fine if I ran the calipers on the stock location or do I need to mount the caliper rearward? I would like to retain my stock speedometer if possible.

[m in sc]

you can run it forward. you need the adapter, and an fzr600 rotor, and any blue or gold dot caliper.  would highly recommend a 12 or 13mm master cyl (a grom or zuma ones works nicely)

[Scuffed98]

Does the FZR600 rotor need a spacer or can it just bolt straight on?

[SoCal250]

Does the FZR600 rotor need a spacer or can it just bolt straight on?

A spacer is required. 80mm x 6 bolt circle

You'll also need:
Rotor bolts, longer - 6pcs
Caliper mounting bracket, custom
Caliper mounting hardware

[Scuffed98]

Do you know how big the ID and the OD need to be on the spacer?

[SoCal250]

Do you know how big the ID needs to be on the spacer to fit on the hub?

I used 64mm ID, 109mm OD. The FZR rotor is about 63.8mm ID
Mine was mounted on a Daytona 2V0 wheel, but everything is the same as on the RD250/RD350/RD400 except for thickness.

[Scuffed98]

How big does the bolt holes need to be for the hardware.

[m in sc]

m8 for the rotor. m10 for the caliper.

[Scuffed98]

What length and grade for the caliper and rotor bolts are recommended?

Thanks for all the info. I don't have any of the components on hand so I couldn't take measurements myself