More Than a Ride: HONDA MONKEY125 Custom

• Monkey125

• 
• 
• 

Webike's Opinion

Here is a "HONDA MONKEY125" custom by Webike community user "Monchy rider". The owner originally planned to keep the bike in its stock form, but over the past three years, he has ended up investing nearly as much as the cost of another Monkey. "The Monkey is just too addictive as a hobby, and I find myself pouring too much into customization—I wish someone would stop me," he laments, though he is prepared to take it as far as it can go. Among the qualities the owner enthusiastically praises about the Monkey are its fuel efficiency and looks. It easily averages over 60 km per liter, and he loves its playful, rounded design, which has him completely hooked.

For the exhaust, he chose the highly-rated YOSHIMURA Machine-Bent GP-MAGNUM Cyclone Full Exhaust System, popular among Monkey owners. Compared to the stock exhaust’s 5.0 kg, the GP-MAGNUM Cyclone weighs in at just 2.4 kg, achieving about a 50% reduction in weight. Combined with the low-mount exhaust pipe layout that helps lower the center of gravity, it greatly enhances the bike’s agile performance. The sound has the deep bass characteristic of a full exhaust system, and its specialized silencer structure reduces harsh exhaust noise, making for a pleasant sound that doesn’t tire the rider, even on long rides.

Aiming for a café racer style, the owner installed the HURRICANE Aluminum Clip-On Handlebar Kit. This lowers the handlebar position and gives a sleeker look. The riding posture is now more forward-leaning, achieving a sharper riding profile. He also replaced the mirrors with retro-modern round-style TANAX BAREN Neo Mirror C bar-end mirrors. The wide-angle mirror design makes it easy to check behind, with better visibility.

The engine has been big bored to 181cc with the SP Takegawa Hyper S Stage N-20 Kit. To address increased oil temperature after the big bore, the SP Takegawa Compact Cool Kit was added. According to the owner, he is very pleased with this setup, noting that oil temperatures now stay below 90 degrees.

Gallery

Specifications

Part	Details
Exhaust	YOSHIMURA Machine Bent GP-MAGNUM Cyclone EXPORT SPEC Full Exhaust
Handles	KITACO Short Rich Lever Set HURRICANE Aluminum Clip-On Handlebar Kit TANAX BAREN Neo Mirror C
Bodyworks	SP Takegawa R. Side Cover Kit HURRICANE Mudguard KITACO Custom Seat KITACO Front Fender for GROM KITACO Side Grip
Electrical	SP Takegawa Φ48 Small DN Tachometer Kit HURRICANE Taillight Kit HURRICANE LED Dagger Turn Signals DRC MOTO LED IC Relay
Drive Parts	DID Standard Series Chain 428HD Steel [with Clip (RJ) Joint] KITACO Drive Sprocket (16T/428) KITACO Driven Sprocket 33T KITACO Wide Chain Guide Plate KITACO Speed Pulse Conversion Unit KOSO Reinforced Starter Motor
Engine	SP Takegawa Hyper Ignition Coil SP Takegawa Power Filter SP Takegawa Compact LED Thermometer Kit NGK Iridium Plug CPR6EAIX-9S 95498 SP Takegawa Super Oil Pump Kit SP Takegawa Lightweight Oil Filter Rotor SP Takegawa Crankshaft Support Adapter SP Takegawa Hyper S-Stage N-20 Kit 181cc (Big Throttle Body) SP Takegawa Reinforced Cam Chain Tensioner Arm SP Takegawa Oil Catch Tank Kit (Cylinder/Stock Clutch Cover) KITACO SD Camshaft Chain 25SD-88L NGK Plug Cap SP Takegawa Slipper Clutch Kit SP Takegawa Reinforced Clutch Spring Set
Oil Cooler	SP Takegawa Compact Cool Kit (4F / Slim Line) (BTB & Big Bore)
Suspension	KITACO Front Fork Spring MINIMOTO Rear Shock Absorber
Rearsets	SP Takegawa Adjustable Footpeg (for HONDA Vehicle) G-Craft Heel Plate G-Craft Billet Shift Pedal G-Craft Billet Brake Pedal G-Craft Shift Guide (Gashiri-kun)
Wheels	IRC MB61 [130/80-12 69J TL] Tire IRC MB62 [120/80-12 65J TL] Tire
Accessories	HONDA Immobilizer Alarm Iseebiz Drive Recorder for Motorcycles TANAX American Touring Bag 4 MOTOFIZZ Orange Stiching MFA-16 EC90 Carbon Bottle Cage for Bicycles Tiakia Smartphone Holder