
Well then, the GSX-R1100L is in the final stages.
I’m working on various different models simultaneously, and my digital memo is always working overtime (*´ω`*)
I’ve been replacing discs since this morning…
The GSX-R rear brake disc is 6mm thick.


While there is compatibility in mounting and diameter, the available discs are 5mm.
Please think carefully before adapting parts.
Removing the rear wheel and progressing smoothly.
The rear disc fixing bolts are super tight! Won’t come off.


If you lubricate and warm it up, then gradually work it back and forth, back and forth, you can get it off… but the bolt angle has changed.
The bolt angle is changing.


Oh no… it’s going to break… snap.
Ugh… bad luck from the start. Let me move on to removal work ( ;∀;)
I’ll make Center Akio-kun (nickname) and open up the tunnel.




It’s reassuring to make a guide so the drill doesn’t slip.
If you hastily punch and drill by eye, things usually get worse.
“Don’t rush or panic.” That’s the best approach.


You can open it up fairly easily like this.
If you look closely, you can see it’s slightly off-center and slipping.
Drilling right away will almost certainly fail, so don’t do it.


I think the SUS304 + thread locker wasn’t a good combination.
From the removal perspective, bolts that aren’t difficult-to-cut materials are a lifesaver.
For stainless steel, Moonlight drills! I swear by these (‘Д’)
When it’s not OEM, check the “pad contact width.”




It’s pretty rough, but checking it will ensure it’s right.
With oil cooling, the disc is downsized to 220φ, and depending on the caliper used, you need to be careful.


Since it goes from 6mm to 5mm, the rear caliper center will shift, so please check.
Check the effective pad width top and bottom – one, two.




Check the top to make sure nothing sticks out in weird places, and check the bottom for any leftover pad. If you check both, it’s perfect.
Then it’s a test ride and we’re done (‘Д’)
















