Black 4 Day Sale is back!

For Thanksgiving, do something this year, and treat your motorcycle with our high-quality products and accessories! Get a 15% discount* on all orders placed on our website during the BLACK 4 DAY SALE. Coupon code : BLACK15  From november 25 to november 28, 2016. Get free shipping on all orders over $200** + .  *Discount […]

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 […]