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Kawasaki Ninja ZX-4R/R Left Side Four Button Race Handlebar Switch

Purpose-built for competitive racing, this four-button handlebar switch is designed specifically for the Kawasaki Ninja ZX-4R/R. It offers reliable durability, precise functionality, and integrates smoothly with the bike’s OEM dashboard and control systems. The built-in rain light enhances rider safety in poor weather or low-visibility conditions.

We proudly partner with Spears Racing, a brand with decades of experience in crafting proprietary, high-performance components. Their commitment to quality and innovation is evident in this durable, race-ready product.

Tariffs & Metal Duties May Effect Overall Price, Please Contact Us Before Purchasing For Updated Pricing!

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Original price was: $329.99.Current price is: $319.99.

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The Spears Racing and Moto Switch collaboration introduces a high-quality, plug-and-play Left Side Race Handlebar Switch (4 Button) for the Kawasaki Ninja ZX-4R/R, featuring a dedicated Rain button. Here’s a concise overview based on the provided details:
Key Features:
  • Compatibility: Works with OEM ECU, Woolich Racing Flash, or any flash supporting the OEM Kawasaki control switch. Directly replaces the OEM plastic switch without modifications, and will install in minutes.
  • Functions:
    • Retains OEM features like power modes, KQS (quick shifter), KTRC (traction control), lap timer, and menu navigation (mileage, trip, range, volts, etc.).
    • Excludes street functions (lights, signals, horn).
    • Uses the right-side select button for menu navigation, per OEM design.
  • Construction:
    • CNC-machined 6061 aluminum housing with rolled threads and black hard-anodized finish with the Spears Racing Logo.
    • Military-grade materials, including Mil-spec wiring and titanium fasteners for lightweight, corrosion-resistant durability.
    • Premium Otto Engineering Hall-effect, gold-plated, domed buttons made in the USA.
    • Encapsulated, epoxy-potted, waterproof design to withstand vibration, water, dirt, and dust.
  • Installation:
    • Plug-and-play with included clutch switch jumper and snap/wire connectors for a clean install.
    • Eliminates the OEM plastic switch.
  • L.E.D. Rear Rain Light:
    • Compact (3.7″ L x 0.7″ W x 0.1″ H), waterproof red LED with 6 high-intensity 2835 SMD LEDs (120LM output).
    • Enhances visibility in all weather conditions, ideal for racing motorcycles.
    • Rain light is included in each left side Kawasaki ZX-4R/R handlebar switch along with the appropriate connectors.
Purpose: Designed for racing, this Left Side Race Handlebar Switch (4 Button) for the Kawasaki Ninja ZX-4R/R offers durability, precision, and seamless integration with the Kawasaki Ninja ZX-4R/R’s OEM dash and controls, while the rain light ensures safety in adverse conditions.
Spears Racing’s decades of expertise and focus on proprietary, high-performance components shine through in this robust, race-ready product. 
This product is specifically designed for track days or closed-course racing motorcycles, not for street use. If you have questions about its features, compatibility, or performance on the track, contact Spears Racing!

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