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The Yamaha Bolt meter is available!

Yamaha Bolt enthusiasts can now customize their motorcycle with our high quality plug & play new Yamaha Bolt meter. It is equipped with a 7 color changeable LCD display and also uses a strong stepper motor that provides a precise and fast RPM reading so that you can get in time information. Some of the great functions the […]

New Cam Chain Tensioner for Honda GROM

Made from resistant high quality material, our Koso chain tensioner could save your engine from expensive damage. We came up with this long lasting solution to replace the OEM chain tensioner which has a tendency to wear prematurely.  Visit the Cam Chain Tensioner page for more informations.

New HD-04 meter !

Another great option for the Harley community is now available! You can customize your sportster with our high quality plug & play meter that is equipped with a 7 color changeable LCD display. Its stepper motor provides a precise and fast response so that you can get in time information. Some of the great functions this meter has […]

New Koso Carburetors

Our Koso KCR carburetor was designed to maximize the air/fuel ratio for better performance. Built from the best quality components, this 28 mm carburetor offers many customization options, such as, various jet and needle sizes. The KSR carburetor features a semi-flat D-style throttle valve that increases the fuel flow for a better throttle reaction. It […]

New Honda GROM parts available!

Increasing your GROM®’s engine power is one thing but this beast has to be fed with the fuel it needs. Koso’s High-flow injector is the essential part for your modified Honda Grom®! It has a higher fuel flow to meet the increased demand of your upgraded engine. For more information, visit the High-flow injector for GROM® page […]

TNT-02 multifunction meter

With its vintage look, our TNT‑02 is the perfect meter for all Café racers and special project bikes that require a small multifunction meter. Following the demand, we created this compact 64 mm meter which is a smaller version of our popular TNT‑01. This TNT‑02 multifunction meter has many features such as; speedometer, odometer, trip […]

EX-02 Enduro meter

Developed by Enduro riders and made especially for them, the EX-02 Enduro meter is the perfect solution for all Enduro applications. Lightweight, compact  and using a convenient speed sensor bracket, it can be quickly installed on most dirt bikes. The EX-02 features all the basic functions such as speed, odometer, trip meter, hour meter, voltage, […]