The stock cover gasket on the Katana is made of paper.
It shrinks a lot when heated.
One option is to apply liquid gasket sealant in advance to areas prone to shifting,
but doing that makes it a real hassle to remove the cover next time (lol).
In fact, applying liquid gasket sealant near the cam ...

It's actually a popular gift at our company too!

The second this official Suzuki GSX1100S Katana pizza cutter hit my workbench, I started tearing down the stainless-steel rotary blade assembly. I had to compare it against standard kitchen tools to expose the unforgivable weaknesses of OEM parts, and man, the engineering here is beautifully insane ...

Fellow gearheads and purists, I need to pause my wrenching and document what just crossed my lift. I’m just a crazy motorcycle fan who happens to spend my days deep in the shop, but the moment this OVER RACING SESMIC-IV exhaust arrived, I couldn't resist. I immediately started tearing down our demo ...

The moment this billet high-flow oil pump arrived at the shop, I was so intrigued that I started tearing down the assembly immediately to compare it with the factory cast version—and discovered the internal geometry is absolutely insane.

The unforgivable weakness of OEM parts is the porous cast ...

Complete missions to earn exclusive Webike Points - up to 1,500 Pts!


What is MyBike?

Your personalized digital garage that connects you to the world of parts and riders.


Missions:

1. Set up Display Name (300 Pts): Set a display name visible to the community on your MyBike profile and reviews ...

It’s the perfect time to refresh and customize your ride!
Webike Japan has some special coupons waiting for you 🔥

Get 10% off when you spend over ¥55,000, or 5% off over ¥25,000.
The best part? These coupons work on almost everything—just not used items.
Yep, you can even use them on genuine OEM ...

The moment the new Moto-Dowell retractable headlight kit for the modern Katana hit my bench, I couldn’t help myself. I started tearing down the whole assembly before my morning coffee to compare it side-by-side with the factory setup. I had to know if this was just nostalgic fluff or a truly ...

Listen up, gearheads. We just got our hands on a new CNC-machined A7075 billet triple tree for the old-school GSX750S Katana, and honestly, the moment it hit the bench, my wrenching instincts completely took over. I couldn't resist tearing down an old factory unit to do a side-by-side caliper check ...

Forum クーポン天ぷら (1).png
Hello everyone,

My name is Tomo from Webike Japan.

We’re excited to offer a special coupon exclusively for members of this forum, which can be used on the Webike Japan website!

As a token of our sincere appreciation for welcoming us into this community, we would love for ...

Hi guys,

thanks everyone for all the responses and feedback!
We’re currently planning discount codes and other offers.
We’re working hard to come up with announcements and benefits that we think you’ll all be excited about.

Thank you,

Webike Japan

Hi everyone,
This is Webike Japan.

We’re a Japan-based motorcycle parts retailer, and first and foremost, we’re riders ourselves. We’re here because we genuinely enjoy motorcycles and the communities built around them.

For forum members, we hope to offer some exclusive perks from time to time ...