
Hmm, MOS, MOS? MOS, MOS?
Ding! ♪(*´ω`*)
Going forward, I doubt there will be many people using MOS calipers on the Inazuma 1200… maybe?
Whether the time will come or not—well, it won’t.
Being in the minority might boost your status? Or maybe not…


By the way, I got two MOS calipers and had them painted with Gun Coat. (Outsourced.)
I don’t do tedious stuff myself either (*´ω`*)

I bought one mainly for the cap.
This silver is so nice! ( *´艸`)


5PW-25802-10
5PW-25802-00
Only the last two digits differ, so check the part identification.
For more details, watching the video is probably faster.


If you have a choice, aluminum pistons are definitely the way to go.


It’s a good idea to always pass the seals through the piston to inspect them (*´ω`*)








Use this kind of adaptation at your own discretion.
By the way, Yamaha uses different seal part numbers for aluminum versus iron…
The mystery runs deep, but I worked through it with reverse lookup and my own interpretation (*´ω`)

Looks awesome… (though you can’t see it…)
Next is to put the cap on and we’re done (*´ω`*) Doesn’t it feel like a pain to do an overhaul without removing this cap?

The brake pads are RK-MAX sintered. For my level, this is more than enough.

Lightly chamfering this area makes the pads retract more smoothly, I find (*´ω`*)
To use this caliper, you need
• Gun Coat
• Aluminum piston
• Overhaul
• Brake pads
Plus outsourcing fees, parts costs, and labor if you’re a customer. The brake hose won’t work as-is either… well, bikes cost money in all sorts of ways.
