Koso North America
- High-flow Oil Pump for Honda GROM 15-20 $47.95 USD
- Koso 170cc Big Bore Cylinder/Head Kit for Honda Grom 15-17 $949.95 USD
- Koso 170cc Big Bore Kit for Honda Grom 15-17 $344.95 USD
- Koso Bracket for Gear Indicator $19.95 USD
- Koso Clutch Enhanced Lifter Plate for Honda Grom® and Monkey® $39.95 USD
- Koso Connecting Tube Honda Grom 15-17 $27.95 USD
- Koso DB-03R Multifunction Plug & Play for Honda Grom $285.95 USD
- Koso Gear Indicator for Honda GROM® In stock $159.95 USD
- Koso Hi-PERFORMANCE CLUTCH KIT | for Honda Grom and Monkey $123.95 USD
- Koso High Flow Injector Honda Grom 15-17 $149.95 USD
- Koso Honda Grom Camshaft Kit 15-17 $129.95 USD
- Koso Injector Adpater Kit Honda Grom 15-17 $79.95 USD
- Koso Intake Manifold 30.5MM-34MM Honda Grom 15-17 $64.95 USD
- Koso Mini 3 Cylinder Head Temperature Meter $99.95 USD
- Koso Piston/ Ring Kit Replacment Part Honda Grom 2015 $98.99 USD
- Koso Rubber Intake Honda Grom 15-17 $24.95 USD
- Koso Throttle Body 34MM Honda Grom 15-17 $125.95 USD
- Koso Top End Gasket Kit Honda Grom 2015 $29.95 USD
- Koso Turn Signal Adapter Kit Honda Grom 13-19 $14.95 USD