Brembo caliper adapters

This is close to Piets measurement and good enough.
I am happy with it, everything matches very well.
Some pics to come, but takes some time.
 
Steph,
perhaps a silly question:
Are you sure, you can assemble the calipers on the 300 rotor?
Rotor is not fixed in your first picture...
 
I wonder why I couldn't ?
It's a blank assembly Roland.

Not all the screws have been installed,
but enough to make the whole thing sturdy.

Disk carrier is fixed to the hub with 3 x M8 screws (instead of 6)
All 9 x M6 screws to fix the brake disk to the disk carrier are in place.

This entire setup worked without any issues using 280mm brake discs.
I simply replaced them with new 300mm discs.

I cannot attach the calipers because, obviously, two adapters are required.
The initial reason for this thread.

Did I answer your question ?
Is it clearer for you ?

What potential problems do you see ?
 
Those cast iron 280mm brake disks are very different.
Particular to that SFC and its front wheel.
All "disc brake" SFCs use this brake disc on the rear wheel.
They are in one solid piece without carriers.

Resize_20261019_144521_1902.jpg

Stainless 300mm brake disks (replica) on Moto Guzzi rotors.
Different fixing
Same offset to the hub (that the Laverda assembly)

Resize_20261019_152642_2657.jpg
 
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more later
 

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What would you suggest for the next step ?
Print a plastic copy, test it, and get back to you ?

Question
Can you easily make one item for the RHS ?

These digital techniques are fascinating ..
 
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