MSX125 Customization Spotlight: Exploring Webike User’s High-Performance Build
Mr. Randy's GROM(MSX125)
In this article, we will take a closer look at the GROM(MSX125) custom owned by Webike user, Mr. Randy. His interest in customization was sparked in 2014. At that time, there weren't many GROM(MSX125)s available on the market. However, the abundance of options for custom parts kept him consistently engaged in the process of customization. The base is an HRC Edition. It has been gradually modified over time, and the customization is still ongoing to this day.
In line with the bike's original theme, the choice of parts also reflects a racing influence. Well known brands like SP Takegawa, Akrapovic, Kitaco, Ohlins, Brembo, Over Racing, and Daytona are featured. Let's delve into the details.
Intake & Exhaust
For the exhaust, he opted for an Akrapovic Titanium Header and Titanium Slip-on Exhaust.
The distinctive header and exhaust accent colors make this bike even more attractive and powerful.
Electrical
The meter panel features an SP Takegawa Super Multi TFT Meter. As the name suggests, it includes a speedometer, tachometer, gear position indicator, temperature gauge, fuel gauge, and clock.
It is also designed with a highly visible LCD display, allowing the rider to clearly see the indicators while riding.
Engine
The engine is equipped with Stage Big Bore Kit 181cc, Big Throttle Body Kit, Super Oil Pump, Ignition Coils, TAF 5-gear Close-Ratio Transmission, and other parts from SP Takegawa. The oil cooler is a Kitaco Super Oil Cooler Kit.
Its complementary components, such as MotoDX NGK Spark Plugs, K&N Air Filters, High-pressure Fuel Pumps, and SP Takegawa Oil Drain Bolts, are also noteworthy.
Chassis
The Brake Calipers are Brembo Front Caliper 4P and Brembo Rear Caliper 2P. The Caliper Brackets are from Active and Over Racing.
The front and rear brake hoses are HEL Brake Hoses. The unique looking discs are made by Racing Boy.
The front and rear shocks are made by Ohlins, whose quality is unquestionable.
The gold color further enhances the bike's appearance.
Bodyworks
In keeping with the theme, this GROM(MSX125) showcases HRC's signature appearance. The painting was carried out by Freeflow Custom with a full custom hand-painting and airbrushing technique, which even includes the application of decals.
The belly pan is Petex Racing's white color.
Gallery
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
Specifications
Part | Details |
---|---|
Engine |
SP Takegawa Stage Big Bore Kit 181cc SP Takegawa Big Throttle Body Kit SP Takegawa Super Oil Pump SP Takegawa Ignition Coil SP Takegawa TAF 5-gear Close-Ratio Transmission NGK MotoDX CPR7EDX-9S Spark Plug K&N Air Filter SP Takegawa Drain Bolt High Pressure Fuel Pump Kitaco Reinforced 6 Clutch Disc Kit Kitaco Reinforced Clutch Lifter Set |
Exhaust | Akrapovic Titanium Slip-on Exhaust Akrapovic Titanium Header |
Frame | Spiker Swingarm with Stabilizer |
Brake | Brembo Front Caliper 4P Brembo Rear Caliper 2P Over Racing Front Caliper Bracket Active Racing Rear Caliper Bracket Hel Front Brake Hose Hel Rear Brake Hose Racing Boy Front & Rear Brake Discs |
Suspension | Ohlins Front Suspension Ohlins Rear Suspension Front Seal Saver Shocksox |
Drive System | Madmax Rear Sprocket 34T Sunstar Front Sprocket 16T DID Gold Chain 420 |
Handle / Steering | Bikers Brake & Clutch Levers |
Oil Cooler | Kitaco Super Oil Cooler Kit |
Bodyworks | Moritech Timing Cover Thailand brand Front Sprocket Guard Kitaco Billet Key Cover Spy Bar End Mirrors Petex Racing Belly Pan H2C Fairing Cover/Front Cowl Daytona Oil Filler Cap Full custom paint by Freeflow Custom Tyga Racing Sport Front Fender Hot Bodies Fender Eliminator |
Electrical |
SP Takegawa Super Multi TFT Meter LighTech Front Blinker |


editor
Hakuyo
A foreigner who rides in Japan, Japanese call this "Gaijin Rider". 6th year in the Webike global team. He feels and shares the real bike life in Japan then presents you how interesting Japanese customs are.