
Suzuki’s charismatic brand “Yoshimura”
It has fans both domestically and internationally.
The camshaft is surprisingly hard to get your hands on.
Especially with the oil-cooled 1200 series, it feels like everything gets optimized from bottom to top.

This camshaft was also a product I struggled to find at the beginning of this year.
There’s definitely that frustration of not being able to get what you want when you want it.

Oil-cooled 1200 series
GSF1200/Bandit 1200/Inazuma 1200/GS1200SS and the like get a particularly delicious result.
The stock version has low-end torque, but the mid-range and up pull is honestly a bit underwhelming.
I think there are many times when the balance between RPM and vehicle speed feels off.
By changing the cam, that balance improves and you get a feeling like “finally, is this stock?”
It’s the impression of smooth revving from low to high.
It feels really good.

Won’t changing the cam lose low-end power?
No way, it’s got plenty of solid low-end (‘ω’)ノ
The ST-2 in particular has that razor-sharp high-RPM pull which is fun, but it’s a bit unsuitable for city riding.
If you’re riding the all-rounder Yoshimura ST-1 oil-cooled 1200, it’s definitely a gem you should experience at least once.
