
By the way, Decoboco’s Tokyo operations are the same as the crowdfunding campaign – through the end of April.
I’ve said this many times, but
the address is “undisclosed” so please understand that not everyone can just drop by casually.
If I write too much detail, it just ends up giving me more things to do, so I’m being cryptic about it.
I think this Z1R probably won’t be finished before the move…
If I could work on just this bike every day, it might barely make it…
But it’s not that simple.
Today I’m going to install the rear brake master cylinder using an OEM-based custom modification.
(Free motorcycle appraisal and sale with the rumored KatieX! This is the new way to sell)
V-STROM650 OEM Rear Brake Master 69600-06G00

The rod foot was extremely long, so
I thought it might work as-is, so I decided to get it.
Reality wasn’t quite that simple…

Comparison with the OEM part.
The pitch is the same, but the V-Strom is M6 so we’ll upsize to M8.
The rod length was slightly short, so we’ll solve it with the “cut-to-inlay-to-weld-to-gun-coat” method.


The V-Strom rear brake master shaft has an outer diameter of 6.2φ,
while the Z1R is 10φ, so it has nice thick walls. We’ll inlay it here and weld it.


I quickly joined the rod together.
By the way, I’m currently down to 1 bottle of argon gas, so I’m welding in a pretty tight situation.

For those who find cutting threads tedious, using a sleeve to fix it with M6 is also an option.
Body is wet blasted! Rod is gun-coated


Today I’m doing incredibly mundane work again.

And that’s how the assembly is complete.
When I look into it more, information about the Z1R Type 1 is pretty scarce


Installation is complete like this.
The master body needs to be offset slightly, so I’ll make a spacer and insert it.
*I haven’t made it yet.
It’s been a while since I’ve used Suzuki OEM parts like this…
To be continued.
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Bike Garage Newsletter
[The Factory] Round bars and pipes organization—here’s how! Creating a variable-length storage rack and pit 5S foundation tuning with Royal architectural hardware
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Everyday Events (Work Log)


(Functional beauty & negative-pressure response, discontinued-part rescue priority): Break through the wall of discontinued OEM parts. GPz750F × Mikuni BS34 vacuum piston diaphragm regeneration and airtightness restoration
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Everyday Events (Work Log)


[Service Log] GSX750S Katana Custom Vehicle—Eliminating Handling Anomalies! Complete Realignment and Friction Reset of All Components for a Fresh Start
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Bike Garage Newsletter


Prepare for disaster! Ready for submersion. Prepare for submersion and flooding. Multi-function emergency escape hammer SAFE T SYL FLEX review
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Everyday Events (Work Log)


Maintenance log: Bikes need sharp senses! GSX750S Katana clutch discomfort investigation—release and drivetrain precision inspection
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ZEPHYR550(ZR550)


My beloved Zephyr 550. Finally! I got my hands on the original bodywork in Candy Atlantic Blue!
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Bike Garage Newsletter


The smell of iron and oil, and words. From a photo frame on the pit wall, Shohei Harumoto still pushes us forward
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Experience! Convenient Items


Recent purchase. The ultra-thin 10mm becomes a 3/8 ratchet! KTC drive angle adapter BZ14BA3. It was an instant buy. But is it treated as a specialty tool?
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Everyday Events (Work Log)


Still loved after nearly 40 years: the GPz900R! More than just passing inspection—the original Ninja’s edge is restored through “inspection and Deco-mainte”








