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 […]

2017 V-Twin Expo

Our team at Koso is excited to announce that we will be an exhibitor at the V-Twin Expo for the second year in a row! Dealers, retailers and industry professionals are invited to come view our meters and accessories related to the V-Twin market.  Stop by our booth #544, it’s worth the visit! What is […]

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 […]

2016 AIMExpo

For the fourth year in a row, Koso will be an exhibitor at the AIMExpo. Stop by our booth #1306 at the Orange County Convention Center in Orlando, Florida, to see the latest additions to our line of meters and accessories; such as, the Harley‑Davidson 4 pcs kit, the HD‑04 for  sportsters, Honda Grom parts, the plug […]

Koso new catalogs

Koso is expanding its line, now presenting more type of products ! In order to introduce our latest products to our customers, we have simplified the research by having some sectional catalogs in addition to the complete one.  The products in the catalogs are also linked to our website so you can view the product […]

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 […]