Rolling Wrench
Rolling Wrench Wideband O2 Sensor
Rolling Wrench Wideband O2 Sensor
Regular price
$249.00 USD
Regular price
$299.00 USD
Sale price
$249.00 USD
Unit price
per
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Stop guessing your carb tune. This Rolling Wrench Wideband O2 Sensor Kit gives you real-time AFR readings, making jetting accurate, fast, and frustration-free. No more plug reading or endless rejetting — just precise data so you can tune with confidence.
The Details ▶
Carb tuning without an AFR gauge is just guessing — and guessing takes forever. This complete Rolling Wrench Wideband O2 Sensor Kit gives you the most accurate, fast-responding air-fuel ratio readings possible so you can tune correctly the first time.
We spent over a year testing sensors and manufacturers to find the highest-quality, fastest-responding components. The result is the best wideband kit available for scooters, small engines, and GY6 builds — hands down.
The included Bosch wideband O2 sensor reads your exhaust gases and sends exact AFR numbers to the gauge, eliminating plug-reading or guesswork. Just weld the included bung into your exhaust (unless your system already has one) and you’re ready to go.
Included in the complete kit:
Whether you're tuning for stock reliability, installing a big bore kit, or chasing perfect throttle response, this kit gives you the data you need to tune confidently and accurately.
We spent over a year testing sensors and manufacturers to find the highest-quality, fastest-responding components. The result is the best wideband kit available for scooters, small engines, and GY6 builds — hands down.
The included Bosch wideband O2 sensor reads your exhaust gases and sends exact AFR numbers to the gauge, eliminating plug-reading or guesswork. Just weld the included bung into your exhaust (unless your system already has one) and you’re ready to go.
Included in the complete kit:
- Rolling Wrench AFR gauge
- Gauge cup
- Gauge sun visor
- Gauge cup mount + hardware
- Flat surface dash mount
- Bosch wideband O2 sensor
- Power bank computer module
- Weld-in O2 bung + cap
- O2 sensor wiring harness
- Power harness (black = ground, orange/red/white = 12V power)
- Gauge-to-computer harness
- Data logging cable
- Instruction booklet
Whether you're tuning for stock reliability, installing a big bore kit, or chasing perfect throttle response, this kit gives you the data you need to tune confidently and accurately.
Important Things to Note ▶
Tuning AFR Reference Numbers:
Idle: 13.3–14.7 AFR (12–12.5 AFR if running a performance cam)
Cruise: 13–13.3 AFR Full Throttle: 12–12.5 AFR
These AFR values give you the best throttle response, performance, and safe combustion.
Welding the included bung into your exhaust header is required unless your header already has a wideband port. Data logging is supported for advanced tuning.
Idle: 13.3–14.7 AFR (12–12.5 AFR if running a performance cam)
Cruise: 13–13.3 AFR Full Throttle: 12–12.5 AFR
These AFR values give you the best throttle response, performance, and safe combustion.
Welding the included bung into your exhaust header is required unless your header already has a wideband port. Data logging is supported for advanced tuning.
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