Newest Products

External Thumb Switch – for RX-2NS RPM Data Logger Fits on only RX-2NS RPM Data Logger For 7/8″ or 1″ handlebar

This small AC/DC Converter made of aluminum will convert AC power into DC power. The AC/DC converter’s compact size and strong resistance make it t...

For 2 stroke engine only

3 pieces kit includes: Bung Cap Aluminum washer

The DB-03R is a multifunction meter with a modern casing that provides necessary critical readings. The DB-03r features all standard indicators nee...

KOSO Water Hose Adapter

Fast Response (28-CKTYPEX) sensor. Clamp size : 40-60mm Clamp Included

KOSO Hexagonal magnet screw

sold as a single unit

Screw Type For EX-02 Japanese Applications only

509’s Tactical 2.0 snowmobile helmet is here to raise the bar we set and to prove that improvement is indeed possible.Trail and Mountain riders ali...

It's hard to wear a normal sweatshirt after experiencing the performance of the 509 Women's Tech Zip Hoodie. An evolution of a 509 fan favorite, th...

Deodorize your life with the long-lasting freshness of the 509 Truck Freshener. Available in Dog Tag, Helmet, and Fuel Can graphics and each offere...

The 509 Tactical 2.0 Enduro Helmet offers the latest in technology and safety from our bestselling Tactical Offroad Helmet family. Innovative featu...

Equally adept as an extra layer for cold days as it is for daily wear, the 509 Syn Down Insulated Jacket is the perfect lightweight, packable optio...

Compatible with all Sinister X7 goggles, the 509 Sinister X7 Lens allows for quick and easy lens swaps depending on light and snow conditions, lett...

Compatible with our Sinister X7 Ignite S1 Goggle, the 509 Sinister X7 Ignite S1 Lens allows for quick and easy lens swaps depending on light and sn...

Is the coolest thing about the 509 Sinister X7 Ignite S1 Goggle its heated inner lens for premium vision clarity? The quick-change magnetic lens co...

The 509 Lightweight Pro Balaclava is designed to fit comfortably under your 509 helmet and goggles and will keep you warm and comfortable no matter...

Today, many horsepower enthusiasts are upgrading their engine with turbo or supercharger. For this reason, we came up with this basic X‑1 boost gau...

KOSO PROTON Water temperature meter with adapter  

The Proton water temperature meter will provide you with a precise reading of your engines coolant temperature. Supplied with a 1/8 BSP sensor, ...

This compact and lightweight Mini 3 dual temperature meter features two temperatures output. This meter can give you precious information such as...

Koso’s DL‑01 meters use a reverse LCD display so when the meter is turned off, the screen is deep black.

Our Super Slim Style series is one of our best seller because its small and compact size makes it very easy to install at almost any location on th...

Our Super Slim Style series is one of our best seller because its small and compact size makes it very easy to install at almost any location on th...

The small and compact size of the i-Gear thermometer makes it very easy to install at almost any location on the ride. The blue or red illuminated ...

The DL style meter serie is built using a reverse LCD screen that gives it a unique look as they become completely dark when turned off. Another g...

Our Mini4 tachometer uses an LCD screen powered by an inner CR 2032 changeable battery that allows installation on any vehicle. With the small, com...

The HD‑01S for Harley‑Davidson® features a speedometer, an odometer, and a tripmeter. This instrument will fit the OEM speed sensor. Want something...

Thinner and lighter than its previous version, the XR‑SA speedometer, our innovative XR‑01S speedometer most importantly features a larger, higher ...

Thinner and lighter than its previous version, the XR‑S speedometer, our innovative XR‑01 speedometer most importantly features a larger, higher qu...

Our DB‑01R+ multifunction meter is an upgraded version of our popular DB‑01R multifunction meter. Perfect for motorcycles, street fighters or dual‑...

Developed by Enduro riders and made especially for them, this EX‑02 speedometer is the perfect solution for all Enduro applications. Lightweight, c...

SpeedometerR: 0 ~ 225 MPH (0 ~ 360 km/h)U: MPH or km/h OdometerR: 0 ~ 99,999 miles (km)U: 1 mile (km) Tripmeter A/BR: 0 ~ 999.9 miles (km)U...

You can now customize your sportster with our high‑quality plug & play meter that is equipped with a 8 color changeable LCD display. Its steppe...

You can now customize your sportster with our high‑quality plug & play meter that is equipped with a 8 color changeable LCD display. Its steppe...