aRacer QS-Sport V2 Standalone Quickshifter Kit
Upgrade your ride with lightning-fast, clutchless upshifts.
The aRacer QS-Sport V2 is a premium, independent quickshifter system designed to deliver professional, race-grade performance to your motorcycle. Unlike traditional quickshifters that require an expensive aftermarket engine control unit, the QS-Sport V2 features a built-in standalone computer module. It connects directly to your ignition coils, allowing it to function flawlessly with your bike's original factory (OEM) engine computer or any aRacer ECU.
By temporarily cutting ignition timing for a fraction of a second when you click the shifter, it allows you to keep the throttle pinned wide open during gear changes. This reduces shifting time by more than 50%, giving you faster acceleration, smoother gear transitions, and a massive advantage on the track or the street.
🚀 Key Performance Features
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True Standalone Operation: Works independently. No need to purchase a secondary fuel controller or aftermarket racing ECU to get full quickshifter functionality.
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MotoGP-Grade Hardware: Equipped with a highly sensitive Piezoelectric Pressure Sensor for crisp, precise, and instantaneous shift execution.
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Bi-Directional Configuration: Features a smart two-way push/pull sensor design, fully supporting both Standard and Reverse (GP Shift) patterns.
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Universal EFI Support: Compatible with 1, 2, 3, and 4-cylinder Electronic Fuel Injection (EFI) motorcycle engines that utilize inductive ignition coils (strictly non-CDI systems).
📱 Smart Tuning via Bluetooth
Fine-tune your shifting performance instantly from your smartphone. The QS-Sport V2 pairs wirelessly with the dedicated aRacer QS Sport App (available on iOS and Android), giving you total control over your setup:
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Quick Setup Wizard: Get calibrated and ready to ride in minutes.
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RPM-Based Adjustments: Custom-tailor exact ignition-cut delay durations across different RPM ranges to match your specific riding style.
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Sensitivity Control: Adjust the exact sensor trigger pressure needed to execute a shift, eliminating accidental or false neutrals.
📦 What’s In The Box?
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1 x aRacer QS-Sport V2 Main Control Unit
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1 x Two-Way Pressure Sensor (Push/Pull)
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1 x Adjustable Shift Rod Linkage Kit
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1 x Main Connection Wiring Harness
⚠️ Important Fitment & Compatibility Note
The aRacer QS-Sport V2 is a universal system for manual transmission EFI motorcycles, but wiring requirements vary by bike model:
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Plug-and-Play Fitment: Dedicated, plug-and-play wiring harnesses are included/available for popular models such as the Yamaha Y15ZR, R15, R3, MSX125 / Honda RS150 / Suzuki GSX-R150 / Kawasaki Ninja 400.
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Universal Fitment: For all other 1-to-4 cylinder EFI models not listed above, installation is entirely possible but will require custom modification or splicing into your motorcycle's accessory/ignition wiring harness.