Tips & note– archive –

Nowadays, most parts manufacturers produce their products in China or Southeast Asia.We're no exception at Moto Rockman—about half of our components are manufactured overseas. The reason is simple: lower costs.But what exactly makes it c...

Today's topic is:"Should You Apply Thread Compound to Bolts?" In fact, this is a subject on which even professional mechanics hold differing opinions. -Apply it as a general rule -Apply it only to high-temperature areas -Prefer not to us...

Threads are classified by “grades.”Simply put, these grades are standards used to control the amount of clearance and play between mating threads. In Japan, thread grades are generally classified as follows: Grade 1 → Minimal clearance a...

In this article, I'd like to give you a glimpse into how I, as a product design engineer, evaluate products made by other manufacturers. I'll walk you through what catches my attention, what I look for, and what's going through my mind w...

I asked a certain helmet manufacturer about this, and apparently UV (ultraviolet) protection is now standard on most modern helmet shields (*). So does that mean a clear shield won’t be glaring? Not at all. That’s because UV protection i...

The photo below shows Yoshimura’s GSX-R1000. It was taken at the opening round of the 2024 JSB1000 (All Japan Road Race Championship). Since it was still cold in early March, the radiator was partially covered to help maintain operating ...

This time, we are talking about thermal conductivity. It is a value that represents "how easily heat transfers," where a higher value means faster temperature changes. How does this connect to motorcycles? Differences caused by the varia...

In the past, someone asked, "Is it bad to put a lever guard on the left side?"It might sound like a trivial question, but it is actually very deep. The purpose of a lever guard The purpose of a lever guard is to prevent the brake lever f...

Brake fluid is "brake fluid," not "brake oil"!Then why does the term "brake oil" exist?Why is it called a "hydraulic (oil-pressure) brake" when it is not oil?This time, we will explain the reasons behind it. What is brake fluid? Brake fl...

Here is the translation of the quiz text: Quiz: There are three types of M6×25 bolts with different shapes (A: Flanged hex bolt, B: Hex socket head cap screw, C: Hex bolt). Which of these has the largest tightening torque (the highest nu...

The section below the bolt head (the part where you apply the tool) is called the "under-head." Although it becomes invisible once tightened, there is actually a standard for "coolness" even in this part. The less the thread "protrudes,"...

This time, let's talk about threadlockers.As a titanium bolt vendor, one of the most common questions we get is: "Should I use a threadlocker even with titanium bolts?" That's true; for components where the service manual specifies it, y...

This time, we are talking about "torching titanium bolts to give them a anodized/burnt look," which you often see on YouTube and other platforms. To put it bluntly: heating bolts with a torch or a charcoal grill is a dangerous act that c...

We previously received an inquiry like this:"When I buy brake pads, the shop staff always tells me to 'be careful until they bed in.' That means 'let the pads and discs seat properly,' right? But in endurance races, even when they swap o...

First, please take a look at this. The reason why the fast lane and the inner lane are different colors is due to the difference in materials. The fast lane used for through-traffic is asphalt, while the inner lane extending from the gar...

We previously had a discussion on social media about the origin of OEM (genuine) oils. The conversation went something like this:"Kawasaki publicly states that theirs is made by Elf, but I wonder who makes it for the other three manufact...

The primary purposes of anodizing are "corrosion resistance (aluminum protection)" and "decoration." However, some types of anodizing are performed specifically to impart particular "functional properties." Lubricant Anodizing It is used...

There is a wide variety of colors that can be achieved through anodizing.Most of these colored items are created by infusing dye into the "microscopic pores" formed on the surface. So, what other processes exist besides dyeing, and what ...

This time, we will look into "Alumite."In Japan, many people believe that "Anodizing = Alumite."Why is this misconception so widespread?We will unravel that mystery. What is Alumite? It is a type of anodizing.It is an artificial oxide co...

This time, the theme is "chemical cracking."Even in the motorcycle industry, few people know about this. It is a phenomenon where plastic cracks due to chemicals.When lubricants penetrate areas under stress, the material becomes brittle ...